MaxHeight vs Tallwise
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
MaxHeight
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See how tall you'll be. MaxHeight predicts your adult height in about 60 seconds. Answer a few questions ā your height, your parents' heights, where you are in puberty ā and get your predicted adult height with its likely range. No photos, no guessing: the prediction blends up to four established pediatric methods, built on CDC growth data. Then do something about it. MaxHeight turns your prediction into a daily plan: ⢠YOUR PREDICTION ā predicted adult height, your likely range, and how you compare with people your age right now. ⢠A PLAN FOR EVERY DAY ā a 365-day exercise plan that follows the WHO and US physical-activity guidelines for teens: impact and strength on build days, mobility and posture in between. Every move is illustrated. ⢠EAT FOR GROWTH ā daily calorie, protein, calcium and vitamin D targets from official US references (NASEM, USDA). Photograph a meal or describe it in words; foods the app doesn't know are looked up in the USDA reference database, and anything estimated is marked so you can correct it. ⢠ASK THE COACH ā a growth coach that answers your questions and can look at a plate of food, your posture, or an exercise position. ⢠COMMUNITY ā ask a question, share progress, and hear from people your age. Text only, every post checked, 13 and up. ⢠TRACK IT ā log your height as you grow. Your real measurements sharpen the prediction over time. ⢠STAY ON IT ā streaks, achievements, and an optional daily reminder. Where our numbers come from: every figure in MaxHeight traces to published science ā CDC growth charts, NASEM dietary references, USDA food data, WHO activity guidelines. The methodology screen shows exactly which, so you can check for yourself. No app can predict height exactly ā that's why MaxHeight always shows the range. MaxHeight is a subscription. Terms: https://maxheight.app/terms Ā· Privacy: https://maxheight.app/privacy
Tallwise
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How tall will you be? Tallwise gives you a real answer from growth science, not a guess. WHAT IT DOES ⢠Predicts your adult height from your age, height, weight, your parents' heights and your stage of growth, using the Khamis-Roche method and CDC growth charts ⢠Shows a range with an honest error band, and updates the prediction every time you log a new height ⢠Places you on the growth chart: see your percentile and your projected path to adulthood ⢠Growth Score from sleep, protein, movement and a daily 10-minute posture and mobility routine ⢠Works for teenagers, and for parents logging a child TALLWISE PLUS Plus unlocks your exact predicted number, monthly re-predictions, the Growth Score and the daily routine, and the share card. Monthly, yearly or lifetime, cancel any time. Prices are shown in the app and may vary by country. PRIVATE BY DESIGN No account. No ads. No tracking. Everything stays on your phone. Tallwise is not medical advice. Predictions are statistical estimates with a stated error range; talk to a doctor about growth concerns. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://alagicamir.github.io/korklar-legal/tallwise/privacy.html
Screenshots
Verdict
The clearest difference is iOS requirement: MaxHeight at 16.4 against Tallwise's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. MaxHeight sells 2 in-app purchases, starting at $4.99 per 7 days and Tallwise sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
MaxHeight ships an update every 6 days, Tallwise every 4 days. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.
| Parameter | MaxHeight | Tallwise |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days | Every 4 days ā better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 16.4 ā better | 18.0 |
| Further details ā not scored | ||
| Size | 116 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Ciel Labs LLC | Amir Alagic |
In-app purchases
MaxHeight
- Weekly7 Days trial$4.997 Days
- Yearly$34.991 Year
Tallwise
- Plus Monthly$1.991 Month
- Tallwise Plus$4.997 Days
- Tallwise Plus3 Days trial$34.991 Year
- Plus Lifetime$19.99








