Comparison

Flexibility Tracker vs Mighty Nimble

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flexibility Tracker

Measure, track, and improve your physical flexibility using your phone's camera. AI-powered measurements and visual progress tracking help you achieve your stretching goals, from touching your toes to mastering the splits. Stay motivated with levels and badges.

Highlights
  • Measure joint angles with camera/photo
  • Track progress with pictures and data
  • AI-powered flexibility analysis
  • Compare and visualize improvements
  • Stay motivated with levels and badges
  • Tag measurements as 'Warm' or 'Cold'
Read full description

Range helps you measure, track, and improve your physical flexibility. Whether you're a new to stretching or a seasoned athlete, Range is here to guide you every step of the way. "I always feel tight, but now I can see that I'm making progress towards my goals on pictures & with real data from angles! So motivating and keeps me stretching consistently. Getting closer to the splits. Already recommended to my yoga class. Awesome app!!" – Julia (Jul 13, 2024) "Good app. Measurements are easy to do and don't take long so I usually do them before and after training. I do martial arts and have been trying to kick higher. Super helpful to see my progress from session to session. " – Alex (Jul 20, 2024) Features: · Measure your flexibility – using your phone's camera or a photo measure joint angles. Whether you want to improve your forward fold, front splits or pancake – Range helps you measure it and quantify your progress using AI that actually works. · Track progress – using pictures and see how you're getting better on stretches with charts and real data. · Quick and accurate – measuring your flexibility takes only a few seconds so you can easily integrate it into your stretching sessions. You can always adjust and fine tune the measurement to ensure it's accurate. · Compare and improve – compare your logged pictures to see how your form and range has improved. · Stay motivated – with flexibility levels and badges. · 'Track warmup ratings – tag measurements as "Warm" or "Cold" and filter results to compare your progress before and after training / stretching. · Reach your goals – finally get to the front splits, or touch your toes. No matter your level, Range can help you get there. Challenge yourself. Unlock your flexibility progress with Range. Range is free to download. Start your free trial and discover how measuring + tracking can help you understand and improve your flexibility. Continued use requires a subscription. The subscription will automatically renew unless turned off in your account settings at least 24 hours before the current period ends. You can go to your account settings to manage your subscription and turn off auto-renew. Your account will be charged when the purchase is confirmed. If you subscribe before your free trial ends, any remaining free trial period will be forfeited as soon as your purchase is confirmed. Terms of Service: https://rangeflexibility.com/terms Privacy Policy: https://rangeflexibility.com/privacy-policy Support: daniel@rangeflexibility.com DISCLAIMER: Please seek a doctor's advice before using this app or making any medical decisions. You are responsible for your own health decisions. Do not take anything from any website or app, including this one, and try it without proper research and medical supervision. We are not liable for any injuries or health problems that may result from following the assessments and recommendations provided by this app. Use of this app is at your own risk.

About

Mighty Nimble

Features
Read full description

Your first routine is one sentence away. Tell Mighty Nimble what you need — "20-minute upper body with dumbbells," "my lower back has been tight," "quick warm-up before a climb" — and get a complete, personalized routine in seconds. Use text or your voice. No menus. No templates. No scrolling through exercise lists. BUILT FOR YOUR BODY Every routine is shaped by your profile — age, fitness level, equipment, health conditions, and goals. A leg day for someone with a knee injury isn't just missing squats. It's a fundamentally different routine, designed around your body. ANY DISCIPLINE. ONE APP. Strength training. Mobility. Yoga. Sport-specific conditioning. Rehabilitation. Warm-ups and cool-downs. Other apps are siloed into one discipline — Mighty Nimble covers all of them, and you can combine them in a single routine. EDIT BY CONVERSATION Don't like something? Say so. "Make it shorter, drop the burpees, and add more core work" — your routine updates instantly. One change or ten at once. The AI rebuilds around what you want. PLAY WITH GUIDANCE Tap play and go. Timers, countdowns, and audio cues guide you through every set and rest period. Start anywhere in the routine. Skip ahead. Pause. Your workout, your pace. SHARE WITH ANYONE Every routine can be shared with a link. The recipient sees a clean, visual workout in their browser — no download needed. Great for trainers sharing with clients, friends swapping routines, or sending a warm-up to your climbing partner. ORGANIZE YOUR WAY Folders let you group routines by goal, sport, time of day — whatever works. Each folder can have its own settings: different equipment, fitness level, health considerations. A "Travel" folder with bodyweight-only. A "Morning Mobility" folder for flexibility. A "Client: Sarah" folder with her specific needs. GETS SMARTER OVER TIME The AI learns from your history — what you ask for, what you change, what you keep. Your routines become more personalized the more you use it. MIGHTY NIMBLE PLUS Unlock extended-thinking AI that uses your full context for deeper precision, unlimited routines and folders, workout insights and analytics, and priority generation. TERMS OF USE (EULA) https://mightynimble.ai/terms#terms

Screenshots

Flexibility Tracker4 screens
Mighty Nimble4 screens

Verdict

The call

The clearest difference is update cadence: Flexibility Tracker at every 3 days against Mighty Nimble's every 3 weeks. Flexibility Tracker also leads on iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flexibility Tracker sells 4 in-app purchases, starting at $8.99 per month and Mighty Nimble sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Flexibility Tracker ships an update every 3 days, Mighty Nimble every 3 weeks. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
Flexibility Tracker versus Mighty Nimble: the parameters behind the verdict, then further details
ParameterFlexibility TrackerMighty Nimble
PriceFreeFree
Rating4.7 (42 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings42 — better—
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS16.0 — better26.0
Further details — not scored
Size235 MB45 MB
Age rating4+4+
DeveloperDaniel WainrybAndres Canella

In-app purchases

4 purchases

Flexibility Tracker

Subscriptions4
  • Monthly member7 Days trial$8.991 Month
  • Monthly member7 Days trial$12.991 Month
  • Annual member14 Days trial$39.991 Year
Show 1 more
  • Yearly member7 Days trial$39.991 Year
2 purchases

Mighty Nimble

Subscriptions2
  • Mighty Nimble Plus$6.991 Month
  • Mighty Nimble Plus7 Days trial$49.991 Year

Questions

Is Flexibility Tracker free?
Flexibility Tracker is free to download, with in-app purchases available.
Is Mighty Nimble free?
Mighty Nimble is free to download, with in-app purchases available.
Do Flexibility Tracker or Mighty Nimble have ads?
Neither Flexibility Tracker nor Mighty Nimble shows ads.
Which is updated more often, Flexibility Tracker or Mighty Nimble?
Flexibility Tracker ships an update every 3 days, and Mighty Nimble every 3 weeks. Most recently, Flexibility Tracker was updated on September 21, 2026 and Mighty Nimble on September 10, 2026.

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