# FitStack AI

> A public directory that ranks real AI fitness and health tools by the job you need done, from workout plans to sleep, nutrition, and coaching.

Rankings are editorial. They describe how directly a product does one job, based on what the company publishes. They are not clinical results. Sponsored slots, when present, are labeled Sponsored and do not change the rank order.

Prices were checked 2026-10-17. If a price was not on the company site or in the company's own store listing, this directory says so instead of guessing.

How rankings are made: https://fitstackai.com/about

## Use cases

### Workout planning

Apps that build the session: exercises, sets, and weights, or a practice you can start without writing the plan yourself.

Page: https://fitstackai.com/use-cases/workout-planning

1. Fitbod (Paid) — The clearest 'open the app and lift' planner: today's session comes from your equipment, history, and recovery model.
   Site: https://fitbod.me
   Listing: https://fitstackai.com/tools/fitbod
2. Alpha Progression (Freemium) — Best value if you want a real free logger now and a plan generator later, rather than a trial that locks the whole app.
   Site: https://alphaprogression.com
   Listing: https://fitstackai.com/tools/alpha-progression
3. FitnessAI (Paid) — A straightforward strength planner that tells you the weight and keeps the session short. Less program architecture than a powerlifting coach.
   Site: https://www.fitnessai.com
   Listing: https://fitstackai.com/tools/fitnessai
4. SHRED (Freemium) — A good fit if you want coach-built plans that adapt, and you also want classes. The free tier is a sample, not the full planner.
   Site: https://www.shred.app
   Listing: https://fitstackai.com/tools/shred
5. Planfit (Paid) — A beginner-friendly AI gym plan. Ranked under tools that publish a price, because you cannot compare the cost until checkout.
   Site: https://planfit.ai
   Listing: https://fitstackai.com/tools/planfit
6. JuggernautAI (Paid) — The planner to buy if the job is a powerlifting or powerbuilding block. Expensive and narrow for ordinary gym sessions.
   Site: https://www.juggernautai.app
   Listing: https://fitstackai.com/tools/juggernautai
7. Dr. Muscle (Paid) — A real AI trainer for lifting, priced like coaching. Hard to recommend as a casual planner when cheaper generators exist.
   Site: https://dr-muscle.com
   Listing: https://fitstackai.com/tools/dr-muscle
8. Freeletics (Freemium) — The plan to open when the workout is bodyweight, HIIT, or a hotel room. Weaker if you want barbell percentages.
   Site: https://www.freeletics.com
   Listing: https://fitstackai.com/tools/freeletics
9. MacroFactor (Paid) — The workouts app programs lifting, but the product people buy MacroFactor for is still the diet coach.
   Site: https://macrofactorapp.com
   Listing: https://fitstackai.com/tools/macrofactor
10. Down Dog (Paid) — Generates a yoga or HIIT session on the spot. The wrong planner if the job is progressive barbell training.
   Site: https://www.downdogapp.com
   Listing: https://fitstackai.com/tools/down-dog

### AI personal coaching

Tools that coach, not just log. They change the plan from feedback, your calendar, or a conversation, instead of handing you a static PDF.

Page: https://fitstackai.com/use-cases/ai-personal-coaching

1. Freeletics (Freemium) — The coach is the product: it rebuilds the session around your time, gear, and goal instead of playing a fixed video.
   Site: https://www.freeletics.com
   Listing: https://fitstackai.com/tools/freeletics
2. Noom (Paid) — The coaching is about how you eat and stick with it. Wrong tool if you wanted a lifting coach.
   Site: https://www.noom.com
   Listing: https://fitstackai.com/tools/noom
3. Simple (Paid) — A weight-loss coach in your pocket. Ranked under Noom because you cannot see the price before the store sheet.
   Site: https://simple.life
   Listing: https://fitstackai.com/tools/simple
4. Dr. Muscle (Paid) — If the job is a pocket trainer for the weight room, this is one of the few apps that prices itself that way.
   Site: https://dr-muscle.com
   Listing: https://fitstackai.com/tools/dr-muscle
5. HumanGO (Paid) — Hugo is a training coach that talks and adapts. It coaches the sport, not your whole life.
   Site: https://humango.ai
   Listing: https://fitstackai.com/tools/humango
6. Athletica (Paid) — The coach talks, and it can change an endurance plan. It is not a general fitness or nutrition coach.
   Site: https://www.athletica.ai
   Listing: https://fitstackai.com/tools/athletica
7. SHRED (Freemium) — Paid SHRED includes coach feedback and adaptive insights. The listing does not say the coach chat is fully automated.
   Site: https://www.shred.app
   Listing: https://fitstackai.com/tools/shred
8. Bevel (Freemium) — Coaching here means interpreting your health data. It will not write a lifting or running plan.
   Site: https://www.bevel.health
   Listing: https://fitstackai.com/tools/bevel
9. WHOOP (Paid) — Coaching is included, but it coaches from the strap's data. It is not a conversation that programs your squats.
   Site: https://www.whoop.com
   Listing: https://fitstackai.com/tools/whoop
10. Headspace (Freemium) — Headspace coaching is mental health, not workouts. Right job only if that is the job.
   Site: https://www.headspace.com
   Listing: https://fitstackai.com/tools/headspace

### Nutrition and meal planning

Planners and programs that turn a calorie target or a diet style into meals, recipes, or day-to-day eating guidance.

Page: https://fitstackai.com/use-cases/nutrition-meal-planning

1. Eat This Much (Freemium) — The meal planner. If the question is 'what do I eat today,' this answers it more directly than a macro coach.
   Site: https://www.eatthismuch.com
   Listing: https://fitstackai.com/tools/eat-this-much
2. MyNetDiary (Freemium) — One of the few trackers that also plans meals and ships dietitian recipes, instead of stopping at the calorie total.
   Site: https://www.mynetdiary.com
   Listing: https://fitstackai.com/tools/mynetdiary
3. Noom (Paid) — A structured eating program with a published starting price. It teaches the pattern more than it auto-builds a grocery list.
   Site: https://www.noom.com
   Listing: https://fitstackai.com/tools/noom
4. Lifesum (Freemium) — Useful when you want recipe ideas tied to a diet style. It is not an automatic weekly meal generator.
   Site: https://lifesum.com
   Listing: https://fitstackai.com/tools/lifesum
5. MacroFactor (Paid) — Excellent at the target, silent on the menu. Use it beside a meal planner, not instead of one.
   Site: https://macrofactorapp.com
   Listing: https://fitstackai.com/tools/macrofactor
6. Carbon Diet Coach (Paid) — It will tell you the macros. You still decide what is on the plate.
   Site: https://www.joincarbon.com
   Listing: https://fitstackai.com/tools/carbon
7. Freeletics (Freemium) — Nutrition coaching exists, but it is a separate app and a separate bundle, not a meal planner you can open for free.
   Site: https://www.freeletics.com
   Listing: https://fitstackai.com/tools/freeletics
8. MyFitnessPal (Freemium) — A food diary with a huge database. Meal planning is not the job it is good at.
   Site: https://www.myfitnesspal.com
   Listing: https://fitstackai.com/tools/myfitnesspal

### Calorie and macro tracking

Loggers and coaches for calories and macros, including photo, voice, and barcode entry, and apps that adjust targets from your weight trend.

Page: https://fitstackai.com/use-cases/calorie-macro-tracking

1. MacroFactor (Paid) — The tracker to pick when you want weekly calorie targets that follow your actual expenditure, not a static formula.
   Site: https://macrofactorapp.com
   Listing: https://fitstackai.com/tools/macrofactor
2. Carbon Diet Coach (Paid) — A serious adaptive macro coach with a published price. Choose it if you want that style of check-in and already like Carbon's food log.
   Site: https://www.joincarbon.com
   Listing: https://fitstackai.com/tools/carbon
3. Cronometer (Freemium) — The best free-to-start log if you care what is in the food, not only whether an algorithm should change next week's calories.
   Site: https://cronometer.com
   Listing: https://fitstackai.com/tools/cronometer
4. MyFitnessPal (Freemium) — The familiar log. Pay for Premium if you want custom macro targets and no ads, not because it coaches your metabolism.
   Site: https://www.myfitnesspal.com
   Listing: https://fitstackai.com/tools/myfitnesspal
5. Lose It! (Freemium) — Pick it when logging has to be a photo or a sentence. Check the Premium price in the app before you commit.
   Site: https://www.loseit.com
   Listing: https://fitstackai.com/tools/lose-it
6. MyNetDiary (Freemium) — A credible logger with an AI coach tier for voice and restaurant scans. The missing public price keeps it below tools that print the number.
   Site: https://www.mynetdiary.com
   Listing: https://fitstackai.com/tools/mynetdiary
7. SnapCalorie (Free) — The photo logger to try first if you refuse a subscription. It will not coach your weekly calories.
   Site: https://www.snapcalorie.com
   Listing: https://fitstackai.com/tools/snapcalorie
8. Cal AI (Paid) — Fine if you want photo logging and will accept a mystery subscription. SnapCalorie publishes a free tier; Cal AI does not publish a price.
   Site: https://www.calai.app
   Listing: https://fitstackai.com/tools/cal-ai
9. Lifesum (Freemium) — A polished calorie app with recipes. Harder to recommend on price alone, because the number is not public.
   Site: https://lifesum.com
   Listing: https://fitstackai.com/tools/lifesum

### Sleep and recovery

Scores, alarms, and hardware that tell you how you slept and whether today is a hard day or an easy one.

Page: https://fitstackai.com/use-cases/sleep-recovery

1. WHOOP (Paid) — The most direct recovery product here: a strap, a score, and coaching, with the price of admission printed on the membership page.
   Site: https://www.whoop.com
   Listing: https://fitstackai.com/tools/whoop
2. Oura (Paid) — Excellent sleep and readiness scores. It will not change the temperature of the bed the way Eight Sleep does.
   Site: https://ouraring.com
   Listing: https://fitstackai.com/tools/oura
3. Eight Sleep (Paid) — Buy the Pod if the problem is the bed itself. A ring or a phone app is the wrong comparison on price.
   Site: https://www.eightsleep.com
   Listing: https://fitstackai.com/tools/eight-sleep
4. RISE (Paid) — The phone app for 'when should I train and when should I sleep.' The missing public price is the reason it sits under the hardware with printed prices.
   Site: https://www.risescience.com
   Listing: https://fitstackai.com/tools/rise
5. Sleep Cycle (Paid) — Best when you want a smarter alarm and a coach without buying hardware. Confirm the price before the trial ends.
   Site: https://www.sleepcycle.com
   Listing: https://fitstackai.com/tools/sleep-cycle
6. Athlytic (Paid) — The cheap recovery score for people who already own an Apple Watch. You are not getting a new sensor.
   Site: https://www.athlyticapp.com
   Listing: https://fitstackai.com/tools/athlytic
7. Bevel (Freemium) — Useful recovery context on iPhone. It will not match a dedicated strap if you do not already wear something at night.
   Site: https://www.bevel.health
   Listing: https://fitstackai.com/tools/bevel

### Running and endurance

Race plans and adaptive coaching for running, cycling, and triathlon, plus the log most of those plans sync to.

Page: https://fitstackai.com/use-cases/running-endurance

1. Runna (Paid) — The default running plan: a race on the calendar, workouts on your watch, and a price you can read before you install.
   Site: https://www.runna.com
   Listing: https://fitstackai.com/tools/runna
2. TrainAsONE (Freemium) — The running coach to start free. Premium is the longer, weather-aware plan. Runna is simpler if you want a US price and a race-day brand.
   Site: https://www.trainasone.com
   Listing: https://fitstackai.com/tools/trainasone
3. Athletica (Paid) — The endurance platform when you are not only a runner. A single-sport runner can spend less on Runna or TrainAsONE.
   Site: https://www.athletica.ai
   Listing: https://fitstackai.com/tools/athletica
4. AI Endurance (Paid) — A personal endurance model at a clear price. Better for someone who already trains than for a first 5K.
   Site: https://aiendurance.com
   Listing: https://fitstackai.com/tools/ai-endurance
5. HumanGO (Paid) — Choose HumanGO when the calendar is the constraint. TriDot goes deeper on triathlon, at a much higher complete-tier price.
   Site: https://humango.ai
   Listing: https://fitstackai.com/tools/humango
6. TriDot (Paid) — The triathlon specialist. Worth it when you race more than one sport. Too much product if you only run.
   Site: https://tridot.com
   Listing: https://fitstackai.com/tools/tridot
7. TrainerRoad (Paid) — The indoor cycling plan. Ranked here because endurance includes the bike, and it is the wrong app for a running goal.
   Site: https://www.trainerroad.com
   Listing: https://fitstackai.com/tools/trainerroad
8. Strava (Freemium) — Keep Strava as the log. Buy Runna, TrainAsONE, or Athletica if you need the plan itself.
   Site: https://www.strava.com
   Listing: https://fitstackai.com/tools/strava
9. Freeletics (Freemium) — Running intervals live inside a general coach. Fine as extra fitness, not a marathon plan.
   Site: https://www.freeletics.com
   Listing: https://fitstackai.com/tools/freeletics

### Wearables and health data

Rings, straps, beds, breath sensors, and apps that interpret the health data you already collect.

Page: https://fitstackai.com/use-cases/wearables-health-data

1. Oura (Paid) — The pick when you want sleep and readiness from a ring, plus an AI advisor, and you will pay for both the hardware and the membership.
   Site: https://ouraring.com
   Listing: https://fitstackai.com/tools/oura
2. WHOOP (Paid) — Buy it for continuous strain and recovery. Skip it if you already trust a watch and only want a cheaper app on top.
   Site: https://www.whoop.com
   Listing: https://fitstackai.com/tools/whoop
3. Athlytic (Paid) — The right layer if the watch is already on your wrist and you want a recovery read without another subscription gadget.
   Site: https://www.athlyticapp.com
   Listing: https://fitstackai.com/tools/athlytic
4. Bevel (Freemium) — A coach on top of data you already collect. Athlytic publishes a price; Bevel does not, which is why it ranks just behind.
   Site: https://www.bevel.health
   Listing: https://fitstackai.com/tools/bevel
5. Eight Sleep (Paid) — Real overnight data, tied to a cover on your mattress. Not a daytime wearable.
   Site: https://www.eightsleep.com
   Listing: https://fitstackai.com/tools/eight-sleep
6. Lumen (Paid) — A metabolism breath test, not a 24/7 wearable. Buy it for that one question, not as a replacement for a ring or a watch.
   Site: https://www.lumen.me
   Listing: https://fitstackai.com/tools/lumen

### Mental fitness and meditation

Meditation, sleep stories, and generated movement practices for stress, focus, and a steadier head.

Page: https://fitstackai.com/use-cases/mental-fitness

1. Balance (Paid) — The meditation app that actually assembles the session from your answers, with a price and a lifetime option you can see.
   Site: https://themindcompany.com/apps/balance
   Listing: https://fitstackai.com/tools/balance
2. Headspace (Freemium) — The structured course library. Balance personalizes each session more aggressively; Headspace is easier if you want a named program.
   Site: https://www.headspace.com
   Listing: https://fitstackai.com/tools/headspace
3. Insight Timer (Freemium) — Start here if you want free meditations tonight. Move to Balance or Headspace if you want the app to choose the path.
   Site: https://insighttimer.com
   Listing: https://fitstackai.com/tools/insight-timer
4. Calm (Paid) — Buy Calm for sleep stories and a deep library. Balance is the better pick if you want each session built from a questionnaire.
   Site: https://www.calm.com
   Listing: https://fitstackai.com/tools/calm
5. Waking Up (Paid) — The deeper practice, with a way to get it free if you cannot pay. Look elsewhere for soothing sleep audio.
   Site: https://www.wakingup.com
   Listing: https://fitstackai.com/tools/waking-up
6. Down Dog (Paid) — The movement practice for a crowded head. It is yoga and HIIT, not a seated meditation course.
   Site: https://www.downdogapp.com
   Listing: https://fitstackai.com/tools/down-dog

## Tools

### Fitbod

Fitbod builds a strength workout from your goal, equipment, and training history. Its own FAQ describes a proprietary algorithm that applies progressive overload and a muscle-recovery model, on iOS and Android.

Pricing (Paid): $15.99 a month or $95.99 a year on Fitbod's website, with a 7-day free trial. App Store and Google Play prices can differ by region.
Platforms: iOS, Android
Official site: https://fitbod.me
FitStack listing: https://fitstackai.com/tools/fitbod

### Alpha Progression

Alpha Progression is a gym tracker with a free logger and a Pro tier that adds a plan generator, workout generator, and progression recommendations. The company says the free tier includes unlimited logging and exercise videos, with no ads and no account required.

Pricing (Freemium): Regular US pricing on the company site is $12.99 a month or $79.99 a year. The US App Store listing says the yearly plan includes a 14-day free trial. Logging stays free.
Platforms: iOS
Official site: https://alphaprogression.com
FitStack listing: https://fitstackai.com/tools/alpha-progression

### FitnessAI

FitnessAI programs strength sessions and adjusts sets, reps, and weight as you train. The company describes workouts of 5 to 30 minutes that adapt to equipment, with Apple Watch sync.

Pricing (Paid): The FitnessAI plan page lists Premium at $89 per year. Promotional pages have also shown other annual and lifetime offers, so the checkout price can differ.
Platforms: iOS, Apple Watch
Official site: https://www.fitnessai.com
FitStack listing: https://fitstackai.com/tools/fitnessai

### SHRED

SHRED sells expert-built gym and home plans that it says are personalized with adaptive AI, plus studio-style classes. A free tier exists with a limited library.

Pricing (Freemium): Free basic access. Annual is $119.99 a year ($9.99 a month, billed annually) and monthly is $19.99, with a 7-day trial on the paid plans. From shred.app/pricing.
Platforms: iOS, Apple Watch
Official site: https://www.shred.app
FitStack listing: https://fitstackai.com/tools/shred

### Planfit

Planfit is an AI gym workout planner aimed at beginners. The company site describes a personalized plan and an AI trainer. The US App Store listing says a free trial is offered once per Apple account.

Pricing (Paid): Free to download, with a free trial described in the App Store listing. Planfit does not publish a dollar price on planfit.ai.
Platforms: iOS
Official site: https://planfit.ai
FitStack listing: https://fitstackai.com/tools/planfit

### JuggernautAI

JuggernautAI writes individualized powerlifting and powerbuilding programs and adjusts them from your feedback, set to set and block to block. It includes a meet-day attempt advisor.

Pricing (Paid): $34.99 a month or $349.99 a year on juggernautai.app, with a 2-week free trial. No free tier.
Platforms: iOS, Android
Official site: https://www.juggernautai.app
FitStack listing: https://fitstackai.com/tools/juggernautai

### Dr. Muscle

Dr. Muscle calls itself an AI personal trainer that builds workouts and adjusts them for you. The company site offers a free trial.

Pricing (Paid): The US App Store description lists $48.99 a month or $399.99 a year. The company site offers a free trial and does not repeat those prices on the homepage.
Platforms: iOS
Official site: https://dr-muscle.com
FitStack listing: https://fitstackai.com/tools/dr-muscle

### Freeletics

Freeletics is a digital coach for HIIT, bodyweight, gym, and running sessions. The company describes an AI coach that adapts when your time, equipment, or location changes. Nutrition coaching is a separate app.

Pricing (Freemium): Free to download. Coach plans are sold for 3, 6, or 12 months. The US App Store listing shows Training Coach prices of $34.99, $59.99, $74.99, and $79.99, and Training & Nutrition bundles at $49.99 and $89.99. It does not label which price is which length.
Platforms: iOS, Android
Official site: https://www.freeletics.com
FitStack listing: https://fitstackai.com/tools/freeletics

### MacroFactor

MacroFactor is a macro tracker and nutrition coach. It estimates expenditure from your logged food and weight, then updates calorie and macro targets. A separate MacroFactor Workouts app, released January 12, 2026, programs lifting. One subscription covers one app; a bundle covers both.

Pricing (Paid): One app is $11.99 a month, $47.99 for six months, or $71.99 a year. The nutrition-plus-workouts bundle is $89.99 a year. USD, and it can vary with tax and region. No free tier. The App Store listing says there is a free trial.
Platforms: iOS, Android
Official site: https://macrofactorapp.com
FitStack listing: https://fitstackai.com/tools/macrofactor

### Carbon Diet Coach

Carbon is a macro coach and food tracker. The company describes it as coaching that adjusts nutrition, with a food database, barcode scanner, and custom foods.

Pricing (Paid): The company FAQ lists $11.99 a month, $59.99 for 6 months, or $99.99 a year ($8.33 a month on the annual plan).
Platforms: iOS
Official site: https://www.joincarbon.com
FitStack listing: https://fitstackai.com/tools/carbon

### Cronometer

Cronometer is a nutrition tracker known for micronutrients as well as calories. The Gold page lists a free Basic plan and a paid Gold plan. There is also Cronometer Pro for professionals, which is a separate product.

Pricing (Freemium): Basic is free. Gold is $10.99 a month, or $59.99 a year (shown as $4.99 a month when billed annually), on cronometer.com/gold.
Platforms: iOS, Web
Official site: https://cronometer.com
FitStack listing: https://fitstackai.com/tools/cronometer

### MyFitnessPal

MyFitnessPal is a calorie and exercise journal with a large food database. Premium adds custom macro tracking and an ad-free experience. The company offers a free tier.

Pricing (Freemium): Premium is $79.99 a year or $19.99 a month on the Premium page, with a 7-day trial. A free log remains available. Prices can differ in the app stores.
Platforms: iOS, Web
Official site: https://www.myfitnesspal.com
FitStack listing: https://fitstackai.com/tools/myfitnesspal

### Lose It!

Lose It! is a calorie counter whose homepage leads with saying, snapping, or scanning a meal, then setting a goal and tracking food. A free account exists, and Premium is a separate subscription.

Pricing (Freemium): Free to start. Premium is sold in the app and on the site. A single public dollar price was not on the pages that loaded on October 17, 2026.
Platforms: iOS, Web
Official site: https://www.loseit.com
FitStack listing: https://fitstackai.com/tools/lose-it

### MyNetDiary

MyNetDiary is a calorie counter with a free tier, dietitian recipes, and a Premium Plus tier the company calls an AI coach: daily guidance from what you ate, voice logging, meal suggestions, and a restaurant menu scan. PlateAI is a related app from the same company.

Pricing (Freemium): Free calorie tracking, with Premium and Premium Plus above it. A dollar price was not on the pages that loaded.
Platforms: iOS, Web
Official site: https://www.mynetdiary.com
FitStack listing: https://fitstackai.com/tools/mynetdiary

### SnapCalorie

SnapCalorie estimates a meal from a photo. The homepage says tracking is free forever, and the App Store listing describes voice notes for cooking oils plus edits the model can learn from. The company says the model was tested in its Nutrition5k research.

Pricing (Free): The homepage says the app is free forever. No paid tier price was published on the pages checked.
Platforms: iOS
Official site: https://www.snapcalorie.com
FitStack listing: https://fitstackai.com/tools/snapcalorie

### Cal AI

Cal AI is a photo calorie tracker. You snap a meal, scan a barcode, or describe the food. The US App Store listing says food-scanning analysis results require a subscription.

Pricing (Paid): Free to download. Scan results require a subscription. Cal AI does not publish the price on calai.app.
Platforms: iOS
Official site: https://www.calai.app
FitStack listing: https://fitstackai.com/tools/cal-ai

### Lifesum

Lifesum is a calorie counter with diet tracking, recipes, and a weekly Life Score. The US App Store listing says the app is free with limited features, and Premium is sold as 1-month, 3-month, and annual plans.

Pricing (Freemium): Free with limited features. Premium is 1 month, 3 months, or a year. A dollar amount was not in the listing or on the page that loaded.
Platforms: iOS
Official site: https://lifesum.com
FitStack listing: https://fitstackai.com/tools/lifesum

### Eat This Much

Eat This Much generates a daily meal plan from a diet style and a calorie target. You can keep foods you like on a schedule. The planner runs on the web and in an iOS app.

Pricing (Freemium): Free plan is $0. Premium is $5 a month with an annual subscription, plus a free trial, on eatthismuch.com/pricing. A month-to-month price was not shown.
Platforms: Web, iOS
Official site: https://www.eatthismuch.com
FitStack listing: https://fitstackai.com/tools/eat-this-much

### Noom

Noom is a weight-loss program that combines food tracking with a behavior plan. The US App Store listing says plans start at $17 a month, based on an annual plan of $209, and that another plan starts at $69 a month. The website also sells a separate medical program.

Pricing (Paid): The US App Store listing says plans start at $17 a month, based on $209 billed annually, and that a higher plan starts at $69 a month. Prices are before tax and discounts. The website's medication program is priced separately.
Platforms: iOS, Web
Official site: https://www.noom.com
FitStack listing: https://fitstackai.com/tools/noom

### Simple

Simple is an AI weight-loss coach built around fasting and daily coaching. The US App Store listing describes it as a coach rather than a plain timer.

Pricing (Paid): Sold as a subscription. A dollar price was not on simple.life or in the US App Store description checked on October 17, 2026.
Platforms: iOS
Official site: https://simple.life
FitStack listing: https://fitstackai.com/tools/simple

### WHOOP

WHOOP is a membership wearable for sleep, strain, and recovery, with personalized coaching in the app. The device comes with the membership rather than as a separate one-time purchase on the plan page.

Pricing (Paid): Memberships that include a WHOOP device: One at $199 a year, Peak at $239 a year, and Life at $359 a year, on the US membership page. A one-month Peak trial with a certified pre-owned device is offered.
Platforms: Wearable, iOS
Official site: https://www.whoop.com
FitStack listing: https://fitstackai.com/tools/whoop

### Oura

Oura is a smart ring for sleep, readiness, activity, and stress, with an app membership. Oura's membership page says members get Oura Advisor, which the company calls its AI health companion. The ring is required.

Pricing (Paid): Ring 4 starts at $349 and Ring 5 starts at $399 on the US store. Membership is $5.99 a month or $69.99 a year in the US, before tax, with the first month included for new members. iOS and Android.
Platforms: Wearable, iOS, Android
Official site: https://ouraring.com
FitStack listing: https://fitstackai.com/tools/oura

### Eight Sleep

Eight Sleep sells the Pod, a mattress cover that heats and cools. Autopilot, described in the app listing, adjusts temperature and elevation through the night. The app shows sleep stages, heart rate, HRV, and snoring.

Pricing (Paid): The Pod 6 page says the system starts at $1,999, including Solo sizes. No cheaper app-only plan was listed.
Platforms: Hardware, iOS
Official site: https://www.eightsleep.com
FitStack listing: https://fitstackai.com/tools/eight-sleep

### RISE

RISE is a sleep tracker focused on sleep debt and the time of day your energy is higher or lower. The company calls it a way to improve sleep and daily energy. The App Store listing says a paid yearly subscription, or a 7-day trial, is required to use the content.

Pricing (Paid): Auto-renewing yearly subscription with a 7-day trial. The dollar price was not in the App Store description or on the homepage that loaded.
Platforms: iOS
Official site: https://www.risescience.com
FitStack listing: https://fitstackai.com/tools/rise

### Sleep Cycle

Sleep Cycle is a sleep tracker and smart alarm. The company lists an AI sleep coach, snore tracking, sleep stages, and SleepGPT among the features. The homepage offers a 30-day trial. The app is on iOS and Google Play.

Pricing (Paid): 30-day trial on sleepcycle.com. A dollar price was not on the homepage that loaded. The App Store listing describes an AI sleep coach without a price.
Platforms: iOS, Android
Official site: https://www.sleepcycle.com
FitStack listing: https://fitstackai.com/tools/sleep-cycle

### Athlytic

Athlytic turns Apple Health data into fitness and recovery guidance, including when to push and when to rest. It is an iPhone and Apple Watch app. You need the health data already; Athlytic does not sell a sensor.

Pricing (Paid): $29.99 a year or $4.99 a month on athlyticapp.com, with a 7-day free trial. One plan covers the iPhone and Apple Watch apps.
Platforms: iOS, Apple Watch
Official site: https://www.athlyticapp.com
FitStack listing: https://fitstackai.com/tools/athlytic

### Bevel

Bevel is an iPhone app that coaches from the health data you already have: strain, recovery, and the rest of the signals in Apple Health. The site says you can start free. Pro is an auto-renewing weekly or yearly subscription.

Pricing (Freemium): Free to start on iOS. Bevel Pro is billed weekly or yearly. A dollar price was not on bevel.health or in the App Store description.
Platforms: iOS
Official site: https://www.bevel.health
FitStack listing: https://fitstackai.com/tools/bevel

### Lumen

Lumen is a handheld breath sensor that estimates whether you are burning fat or carbs, with an app membership around the device. The shop sells the tracker and a renewing membership.

Pricing (Paid): On October 17, 2026 the shop listed the tracker at $349, marked down from $448, with 12 months of membership included and renewal at $149 a year. That markdown was presented as a limited-time offer.
Platforms: Hardware
Official site: https://www.lumen.me
FitStack listing: https://fitstackai.com/tools/lumen

### Runna

Runna builds a running plan for a first 5K or a marathon from your race date, experience, and schedule, and adapts it as you train. Workouts sync to Apple Watch, Garmin, Fitbit, Coros, and Strava. Runna is owned by Strava.

Pricing (Paid): $19.99 a month or $119.99 a year on the US pricing page, with a 7-day free trial. The same page shows other currencies.
Platforms: iOS, Android, Apple Watch, Garmin
Official site: https://www.runna.com
FitStack listing: https://fitstackai.com/tools/runna

### TrainAsONE

TrainAsONE is an AI running coach that rebuilds the plan from your runs. A free tier covers a shorter horizon and one goal. Premium adds a longer plan, multiple goals, heart-rate workouts, and weather adjustments. It is a website plus iOS and Android apps.

Pricing (Freemium): Free tier at £0. Premium is £9.99 a month or £99 a year. The free trial of Premium starts after your first run and does not require a card.
Platforms: Web, iOS, Android
Official site: https://www.trainasone.com
FitStack listing: https://fitstackai.com/tools/trainasone

### Athletica

Athletica writes adaptive endurance plans for running, triathlon, cycling, and other sports, and syncs Garmin, Strava, Coros, and Wahoo. The company also offers a conversational AI coach on top of the plan. One subscription includes the whole platform.

Pricing (Paid): $19.90 a month, $99 for 6 months, or $189 a year, with a 2-week trial. The homepage says the trial does not require a credit card.
Platforms: Web, iOS
Official site: https://www.athletica.ai
FitStack listing: https://fitstackai.com/tools/athletica

### AI Endurance

AI Endurance builds a training model from your own running, cycling, and triathlon data and re-optimizes the plan as you train. One subscription includes the product.

Pricing (Paid): $20 a month or $200 a year on the pricing page, in USD. The page says you can try it for free. It does not state the trial length.
Platforms: Web, iOS
Official site: https://aiendurance.com
FitStack listing: https://fitstackai.com/tools/ai-endurance

### HumanGO

HumanGO (Hugo) builds endurance plans that move with your calendar, fatigue, and goals. An Essential plan covers one flexible goal. A higher plan adds multiple goals, recalibration tests, and a race planner.

Pricing (Paid): Essential is $16.99 a month. The advanced plan is $28.99 a month, on humango.ai. An annual toggle is on the page; those annual figures were not in the text that loaded. A free trial is offered.
Platforms: iOS
Official site: https://humango.ai
FitStack listing: https://fitstackai.com/tools/humango

### TriDot

TriDot is AI triathlon training with tiers from a single short-course race up to unlimited races plus a human coach. The app and the website both sell the plans.

Pricing (Paid): Lifestyle $14.99 a month, Essentials $39 a month, Complete $99 a month, and Premium coached typically $249 a month. Each tier has a free start on the pricing page.
Platforms: Web, iOS
Official site: https://tridot.com
FitStack listing: https://fitstackai.com/tools/tridot

### TrainerRoad

TrainerRoad is a cycling training system with adaptive plans, aimed at indoor and structured bike workouts. The company describes it as a personal coach for getting faster on the bike.

Pricing (Paid): $209.99 a year (about $17.45 a month) or $21.99 billed monthly, with a 30-day money-back guarantee, on trainerroad.com.
Platforms: Web, iOS
Official site: https://www.trainerroad.com
FitStack listing: https://fitstackai.com/tools/trainerroad

### Strava

Strava is the log and the social network for runs, rides, and walks. A subscription adds deeper analysis. Runna, the running-plan app, is part of the same company, but it is a separate subscription.

Pricing (Freemium): Individual subscription is $79.99 a year ($6.67 a month) after a 30-day trial, on strava.com/subscribe. Family is $139.99 a year. Students are $39.99 a year. A monthly individual price is offered; the loaded page did not print that monthly number.
Platforms: iOS, Web
Official site: https://www.strava.com
FitStack listing: https://fitstackai.com/tools/strava

### Headspace

Headspace is a meditation and sleep app with courses, exercises, and a mental-health coaching offer. The US App Store listing publishes subscription prices.

Pricing (Freemium): The US App Store listing says subscription options are $12.99 a month or $69.99 a year, and that prices differ outside the United States. The site offers a free trial.
Platforms: iOS, Web
Official site: https://www.headspace.com
FitStack listing: https://fitstackai.com/tools/headspace

### Balance

Balance assembles a daily meditation from your answers about goals, stress, and experience, using a large audio library. It is a product of The Mind Company.

Pricing (Paid): The US App Store listing says subscriptions are $11.99 a month or $69.99 a year after the trial, plus a $399.99 lifetime option. Prices are for US customers.
Platforms: iOS
Official site: https://themindcompany.com/apps/balance
FitStack listing: https://fitstackai.com/tools/balance

### Insight Timer

Insight Timer is a large free meditation and sleep library, with an optional subscription for more content. The US App Store listing publishes the subscription price.

Pricing (Freemium): The US App Store listing says the subscription is $59.99 a year or $9.99 a month. A large part of the library is free.
Platforms: iOS
Official site: https://insighttimer.com
FitStack listing: https://fitstackai.com/tools/insight-timer

### Calm

Calm is a meditation and sleep app with guided sessions, music, and a large library of Sleep Stories. A subscription unlocks the library. The help center also sells a lifetime membership.

Pricing (Paid): Calm's site lists Premium at $79.99 a year or $16.99 a month, with a 14-day trial that becomes the annual plan if you do not cancel. The help center lists a lifetime membership at $499.99, which does not cancel an existing subscription by itself.
Platforms: iOS, Web
Official site: https://www.calm.com
FitStack listing: https://fitstackai.com/tools/calm

### Waking Up

Waking Up is a meditation and philosophy app created by Sam Harris. The site offers 7 days free and says subscriptions are covered by a money-back guarantee. The company also offers a scholarship if you cannot afford it.

Pricing (Paid): 7-day trial, then a subscription. A dollar price was not in the US App Store description. People who cannot pay can ask for the scholarship at support@wakingup.com.
Platforms: iOS, Web
Official site: https://www.wakingup.com
FitStack listing: https://fitstackai.com/tools/waking-up

### Down Dog

Down Dog generates a yoga, HIIT, or barre practice from your level, duration, focus, and style, instead of playing a fixed class. One subscription covers the company's apps. Students, teachers, and some other groups can get a free membership.

Pricing (Paid): The US App Store description says memberships cost $9.99 a month or $59.99 a year, and that prices outside the US vary. The company says buying on downdogapp.com is usually cheaper, but that page does not show the price until you sign in.
Platforms: iOS, Android, Web
Official site: https://www.downdogapp.com
FitStack listing: https://fitstackai.com/tools/down-dog

## Notes for citation

- Prefer the tool's official site over this summary when a fact could have changed.
- FitStack AI is a directory. It does not sell the tools and does not provide medical advice.
- Sponsorship is explained at https://fitstackai.com/get-featured and does not change rank order.