Comparison

Flexibility Tracker vs White Noise & Rain Sounds

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

White Noise & Rain Sounds

Read full description

White Noise & Rain Sounds is free forever with no ads, interruptions, paywalls, subscriptions etc. Fall asleep faster with relaxing white noise and soothing rain sounds designed to help you relax, quiet your mind, beat insomnia and sleep deeper. White Noise & Rain Sounds is a simple sleep sounds app and noise machine for bedtime. Press play and a steady sound fills the room, giving a busy mind something calm to settle on. Leave it running while you drift off, through a nap, or for as long as you want it beside you. White noise is a smooth, even wash of sound. It softens sudden noises from the street, a hallway, a television in the next room, or a partner who snores. People play it to fall asleep faster, stay asleep, and sleep more deeply through the night. It is a familiar sleep aid for insomnia, restless nights, power naps, shift work, jet lag, and hotel rooms. Parents use white noise for babies, infants, and kids who settle more easily with constant background noise. Students and anyone working from home keep it on to focus, study, read, and concentrate. It also sits quietly in the background for meditation, yoga, mindfulness, and winding down after a long day. Listeners who want to mask traffic, thin walls, noisy neighbors, or ringing in the ears often leave it playing as gentle ambient noise. Rain sounds are the other half of the app. Steady rainfall is one of the most soothing ambient sounds for sleep and relaxation. The soft patter helps the mind slow down at bedtime and gives a calmer night than silence. Choose rain when you want cozy nature sounds, a deeper rest, or a softer mood than white noise. The same rain track works for stress relief, easing everyday anxiety, a Sunday nap, or a quiet hour with a book. Both sounds are made for long listening. Switch between white noise and rain whenever you want a different mood. Set a bedtime and, if you allow reminders, the app can nudge you when it is time to start your sleep routine. Use it for: • Falling asleep faster and sleeping through the night • Insomnia, a racing mind, and restless bedtimes • Deep sleep, power naps, and rest after travel • Babies, infants, and children who sleep better with background noise • Focus, study, reading, and working • Meditation, relaxation, and easing everyday stress • Masking snoring, noisy neighbors, traffic, and hotel noise • A one-tap bedtime ritual you can start every night Every sound is included. The white noise and the rain sounds stay free, with nothing to buy and no ads between you and sleep. Just open the app, press play, and fall asleep.

Screenshots

Flexibility Tracker4 screens
White Noise & Rain Sounds3 screens

Verdict

The call

The clearest difference is in-app purchases: White Noise & Rain Sounds at none against Flexibility Tracker's 4. White Noise & Rain Sounds also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. White Noise & Rain Sounds asks for nothing beyond the download.

UpkeepUpdate frequency

Flexibility Tracker ships an update every 3 days, White Noise & Rain Sounds every 2 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Flexibility Tracker versus White Noise & Rain Sounds: the parameters behind the verdict, then further details
ParameterFlexibility TrackerWhite Noise & Rain Sounds
PriceFreeFree
Rating4.6 (44 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings44 — better—
Update frequencyEvery 3 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size235 MB63 MB
Age rating4+4+
DeveloperDaniel WainrybUndercover Capital LLC

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
None

White Noise & Rain Sounds

No in-app purchases

Questions

Is Flexibility Tracker free?
Flexibility Tracker is free to download, with in-app purchases available.
Is White Noise & Rain Sounds free?
White Noise & Rain Sounds is free to download, with no in-app purchases.
Do Flexibility Tracker or White Noise & Rain Sounds have ads?
Neither Flexibility Tracker nor White Noise & Rain Sounds shows ads.
Which is updated more often, Flexibility Tracker or White Noise & Rain Sounds?
Flexibility Tracker ships an update every 3 days, and White Noise & Rain Sounds every 2 days. Most recently, Flexibility Tracker was updated on October 24, 2026 and White Noise & Rain Sounds on October 29, 2026.

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