# Height Tracker vs Height Predictor

The clearest difference is update cadence: Height Predictor at every 3 days against Height Tracker's every 3 weeks. Height Predictor also leads on iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Height Tracker sells 3 in-app purchases, starting at $5.99 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.

Height Tracker ships an update every 3 weeks, Height Predictor every 3 days. The most recent releases landed on October 16, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Height Tracker | Height Predictor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 6 MB | 38 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Han Kim](https://appshunter.io/developer/1505146544) |

## What reviewers say

### Height Tracker

[App page](https://appshunter.io/ios/app/height-tracker-grow-taller/id6767797519)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $5.99 | per 7 days |
| Annual Premium | $29.99 | per year |
| Lifetime Premium | $59.99 | one-time |


### Height Predictor

[App page](https://appshunter.io/ios/app/height-predictor-growth-chart/id6801840705)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is Height Tracker free?

Height Tracker 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 Height Tracker or Height Predictor have ads?

Neither Height Tracker nor Height Predictor shows ads.

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

Height Tracker ships an update every 3 weeks, and Height Predictor every 3 days. Most recently, Height Tracker was updated on October 16, 2026 and Height Predictor on October 29, 2026.

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