Comparison

MaxHeight vs Height Predictor

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

Head to head
About

MaxHeight

Predict your adult height using established pediatric methods based on your current measurements and family history. Receive a personalized daily plan including exercise, nutrition targets, and growth tracking to help you reach your potential. Connect with a supportive community for encouragement and advice.

Highlights
  • Adult height prediction
  • Personalized daily exercise plan
  • Calorie, protein, calcium, and vitamin D targets
  • Meal logging and food database
  • Growth coach for questions
  • Community forum for users
  • Height tracking and measurement logging
Features
Read full description

See how tall you'll be. MaxHeight predicts your adult height in about 60 seconds. Answer a few questions — your height, your parents' heights, where you are in puberty — 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 — predicted adult height, your likely range, and how you compare with people your age right now. • A PLAN FOR EVERY DAY — 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 — 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 — a growth coach that answers your questions and can look at a plate of food, your posture, or an exercise position. • COMMUNITY — ask a question, share progress, and hear from people your age. Text only, every post checked, 13 and up. • TRACK IT — log your height as you grow. Your real measurements sharpen the prediction over time. • STAY ON IT — streaks, achievements, and an optional daily reminder. Where our numbers come from: every figure in MaxHeight traces to published science — 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 — that's why MaxHeight always shows the range. MaxHeight is a subscription. Terms: https://maxheight.app/terms · 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 — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. MaxHeight sells 2 in-app purchases, starting at $4.99 per 7 days and Height Predictor sells 3 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 25, 2026 and October 29, 2026 respectively.

ScorecardNo meaningful differences
MaxHeight versus Height Predictor: the parameters behind the verdict, then further details
ParameterMaxHeightHeight Predictor
PriceFreeFree
Rating4.3 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 6 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.1 — better
Further details — 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
3 purchases

Height Predictor

Subscriptions2
  • Weekly$2.997 Days
  • Yearly$19.991 Year
One-time1
  • Heightcast Pro$4.99

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 25, 2026 and Height Predictor on October 29, 2026.

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