# GrowMaxx vs Height Predictor

The clearest difference is iOS requirement: Height Predictor at 13.0 against GrowMaxx's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. GrowMaxx sells 5 in-app purchases, starting at $4.99 per 7 days and Height Predictor sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

GrowMaxx ships an update every 3 days, Height Predictor every 4 days. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GrowMaxx | Height Predictor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (71 ratings)](https://appshunter.io/ios/app/growmaxx-height-predictor/id6753605862/reviews)** | — |
| Number of ratings | **71** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 57 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [erdem sengun](https://appshunter.io/developer/1875764238) | [BESTRONG STUDIOS](https://appshunter.io/developer/1846273407) |

## What reviewers say

### GrowMaxx

[App page](https://appshunter.io/ios/app/growmaxx-height-predictor/id6753605862)

This AI-powered application helps users discover their growth potential through personalized routines, posture improvement exercises, and smart reminders. It offers daily plans to stretch smarter and track progress, aiming to enhance physical alignment and fitness.

**Highlights:** Height prediction with AI insights, Personalized daily stretch and workout routines, Progress tracking and regular updates, Posture improvement exercises, Smart reminders for consistency

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Height Increase | $4.99 | per 7 days |
| 1 Week Height Increase | $7.49 | per 7 days |
| 1 Year Height Boost - Offer | $24.99 | per year |
| 52 Week Height Increase | $59.99 | per year |
| 52 Week Height Increase | $59.99 | per year |


### Height Predictor

[App page](https://appshunter.io/ios/app/height-predictor-gotall/id6754962274)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Free Experience For A Week | $0.99 | per 7 days |
| Ads Free Experience For Month | $2.99 | per month |
| Ads Free Experience For a Year | $19.99 | per year |


## Frequently asked questions

### Is GrowMaxx free?

GrowMaxx 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 GrowMaxx or Height Predictor have ads?

Both GrowMaxx and Height Predictor show ads.

### Which is updated more often, GrowMaxx or Height Predictor?

GrowMaxx ships an update every 3 days, and Height Predictor every 4 days. Most recently, GrowMaxx was updated on October 20, 2026 and Height Predictor on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*