Centile vs HeightMax
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Centile
Predict your child's future adult height and track their growth from birth to 20. It uses scientific research and considers parental heights, as well as the child's height and weight from age 4. Offers guidance on exercise, food, and sleep for teens.
- Adult height prediction
- Growth chart from birth to 20
- Monthly height tracking
- Comparison to peers
- Exercise, food, and sleep guidance
- Family subscription
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See your child’s most likely adult height and how they compare with others their age. Every height check sits on one chart. Teens get guidance on exercise, food, sleep and posture. They also see their height twin and sport match. One subscription covers the whole family. Most parents guess from pencil lines on a door frame, and the door frame stays behind when you move. Centile goes with you. It uses both parents’ heights, and from age 4 your child’s own height and weight too. Every number comes from published research, named in the app. WHAT YOU GET • Their likely adult height and range • How they compare with other children their age • A growth chart from birth to 20, with every height check kept in one place • A monthly height check you do together • Exercise, food, sleep and posture guidance for teens • Their height twin and sport match • One subscription for the whole family At 13, your child can move their record to their own phone and carry on. Food, sleep and exercise help children grow normally. None of them adds height or changes the range. It’s a guide, not medical advice, and it can’t spot a growth problem. If you’re worried about your child’s growth, talk to their doctor. Centile works on one phone. Everything stays on that phone. There’s no account, and nothing syncs to another device. No ads, no tracking. Apple backups may include app data. Centile is a subscription. It renews until cancelled and is managed in your Apple account. Age comparison uses the CDC 2000 US growth reference. CDC does not endorse Centile. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://centile.app/privacy/
HeightMax
Estimate your future adult height with a few quick answers about your current stats and parents' heights. Visualize your growth trajectory and compare your percentile to averages. Offers practical tips to support healthy growth.
- Adult height prediction
- Growth trajectory chart
- Height percentile comparison
- Likely height range
- Growth support tips
- Metric/Imperial units
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THAT'S THE AVERAGE. WHAT'S YOURS? Find out how tall you're likely to grow in under a minute. HeightMax turns four quick answers into an estimate of your final adult height. Enter your sex, age, current height and your parents' heights, then see where your growth may be headed. PREDICTED ADULT HEIGHT Get a clear estimate of your final adult height, plus how much growth potential you may have left. View results in centimeters or feet and inches. YOUR GROWTH TRAJECTORY A projected height chart maps your likely growth path from today through your final growth age, so you can see when the remaining inches may arrive. WHERE YOU STAND See your current height percentile and your projected adult height percentile. Find out how you compare with the average for your age and sex. YOUR LIKELY RANGE No prediction is exact. HeightMax shows a likely final height range based on the natural spread of growth curves, so you get a realistic picture rather than a single number. GROW SMART Practical tips on sleep, nutrition, activity and posture help you support healthy growth and stand at your full height. METRIC OR IMPERIAL Switch between cm and ft/in instantly, anytime. FREE TO DOWNLOAD. ONE-TIME UNLOCK. Download HeightMax free and unlock your full results with a single $1.99 purchase. No subscription, no recurring charges. HeightMax provides estimates for entertainment and general information only. It is not medical advice. Talk to a doctor if you have concerns about growth. The average is just a number. Download HeightMax and find out what's yours. Terms of Use: https://doitby.io/terms.html Privacy Policy: https://doitby.io/privacy.html
Screenshots
Verdict
The clearest difference is rating: HeightMax at 5.0 against Centile's 4.0. HeightMax also leads on monetization model (free with in-app purchases vs subscription). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Centile sells 3 in-app purchases, starting at $6.99 per 7 days and HeightMax sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
HeightMax holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Centile | HeightMax |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Free with in-app purchases — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 19 MB | 9 MB |
| Age rating | 12+ | 4+ |
| Developer | SLT Workshop Limited | Nick Simak |
In-app purchases
Centile
- Centile (weekly)$6.997 Days
- Centile (annual)2 variants$24.991 Year
- Centile (annual)1 Year trial$24.991 Year
HeightMax
- Full Results$1.99








