Comparison

MaxHeight vs Height Predictor

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

Head to head
About

MaxHeight

Features
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See how tall you'll be. MaxHeight predicts your adult height in about 60 seconds. Answer a few questions โ€” your height, your parents' heights, where you are in puberty โ€” 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: โ€ข YOUR PREDICTION โ€” predicted adult height, your likely range, and how you compare with people your age right now. โ€ข A PLAN FOR EVERY DAY โ€” 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. โ€ข EAT FOR GROWTH โ€” 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. โ€ข ASK THE COACH โ€” a growth coach that answers your questions and can look at a plate of food, your posture, or an exercise position. โ€ข COMMUNITY โ€” ask a question, share progress, and hear from people your age. Text only, every post checked, 13 and up. โ€ข TRACK IT โ€” log your height as you grow. Your real measurements sharpen the prediction over time. โ€ข STAY ON IT โ€” streaks, achievements, and an optional daily reminder. Where our numbers come from: every figure in MaxHeight traces to published science โ€” 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 โ€” that's why MaxHeight always shows the range. MaxHeight is a subscription. Terms: https://maxheight.app/terms ยท Privacy: https://maxheight.app/privacy

About

Height Predictor

Features
Read full description

Estimates a child's adult height from the CDC stature-for-age charts plus both parents' heights. Shows a range, the percentile chart with your kid's dot on it, and the math behind the number. Every source is in the app. A Sources & references screen lists the CDC growth charts, the published papers behind the percentile and mid-parental steps, and the guidance behind each daily prompt, each one linked and saying which part of the app it backs. Log height a few times a year to follow the curve. There's a daily habit checklist and guided stretch routines with illustrated demos. Stretching is for posture and mobility; it does not change adult height. Works in cm or ft/in. Runs entirely on your phone. No account, no server, no analytics, no ads. Deleting your data in settings removes it completely. Heightcast is an estimate built from public growth references. It is not a diagnosis, not a medical device, and not a substitute for a pediatrician. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MaxHeight4 screens
Height Predictor4 screens

Verdict

The call

MaxHeight and Height Predictor are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. MaxHeight sells 2 in-app purchases, starting at $4.99 per 7 days and Height Predictor sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MaxHeight ships an update every 6 days, Height Predictor every 3 days. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

ScorecardNo meaningful differences
MaxHeight versus Height Predictor: the parameters behind the verdict, then further details
ParameterMaxHeightHeight Predictor
PriceFreeFree
Update frequencyEvery 6 daysEvery 3 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.1 โ€” better
Further details โ€” not scored
Size116 MB38 MB
Age rating4+4+
DeveloperCiel Labs LLCHan Kim

In-app purchases

2 purchases

MaxHeight

Subscriptions2
  • Weekly7 Days trial$4.997 Days
  • Yearly$34.991 Year
2 purchases

Height Predictor

Subscriptions2
  • Weekly3 Days trial$2.997 Days
  • Yearly$19.991 Year

Questions

Is MaxHeight free?
MaxHeight is free to download, with in-app purchases available.
Is Height Predictor free?
Height Predictor is free to download, with in-app purchases available.
Do MaxHeight or Height Predictor have ads?
Neither MaxHeight nor Height Predictor shows ads.
Which is updated more often, MaxHeight or Height Predictor?
MaxHeight ships an update every 6 days, and Height Predictor every 3 days. Most recently, MaxHeight was updated on October 10, 2026 and Height Predictor on October 3, 2026.

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