Height Predictor AI vs MaxHeight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Height Predictor AI
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See where your height is headed — and make every growth year count. HOW IT WORKS 1) Take the 2-minute quiz — age, height, parents' heights, sleep, food. 2) Get your predicted adult height range — the Khamis-Roche method, shown honestly as a range. 3) Start the daily plan for the rest — posture, sleep and nutrition habits, one checklist a day. TallPath predicts your adult height range from the factors that actually matter: your current height, your age, your parents' heights, and how you sleep, eat, and move. The prediction uses the Khamis-Roche method, a peer-reviewed pediatric formula — shown honestly as a range, because genetics set the range and habits decide where you land. YOUR PREDICTION — Current height vs. predicted adult range, updated monthly as you log progress. YOUR DAILY PLAN — A personalized checklist of posture, sleep, and nutrition habits built from your quiz answers. Streaks, a calendar view, and tasks you can complete any time before midnight. TRAIN — A growing library of posture and mobility exercises with guided timers, browsable and repeatable from day one. AI COACH — Ask anything about posture, sleep, nutrition, or your prediction. Your coach knows your plan and answers 24/7. PROGRESS — Log your height, watch the chart move, and get a monthly report comparing prediction to reality. TallPath Premium is available as a weekly or yearly subscription or a one-time lifetime purchase. Subscriptions renew automatically until cancelled at least 24 hours before the end of the period; manage or cancel anytime in your App Store account settings. Restore previous purchases from the paywall. TallPath is not a medical device and does not provide medical advice. Predictions are statistical estimates, not guarantees. Consult a doctor about any concerns regarding growth or development. Privacy: https://tallpath.app/privacy · Terms: standard Apple EULA
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.
- 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
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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
Screenshots
Verdict
Height Predictor AI and MaxHeight 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
Both are free to download. Height Predictor AI sells 3 in-app purchases, starting at $4.99 per 7 days and MaxHeight sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Height Predictor AI ships an update every 5 days, MaxHeight every 6 days. Both last shipped on November 6, 2026.
| Parameter | Height Predictor AI | MaxHeight |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (5 ratings) — better |
| Number of ratings | — | 5 — better |
| Update frequency | Every 5 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Subscription |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.4 | 16.4 |
| Further details — not scored | ||
| Size | 56 MB | 116 MB |
| Age rating | 4+ | 4+ |
| Developer | Redoubt Aps | Ciel Labs LLC |
In-app purchases
Height Predictor AI
- Premium Weekly7 Days trial$4.997 Days
- Premium Yearly3 Days trial$29.991 Year
- TallPath Lifetime$49.99
MaxHeight
- Weekly7 Days trial$4.997 Days
- Yearly$34.991 Year






