# Height Predictor vs Tallwise

The clearest difference is iOS requirement: Height Predictor at 15.1 against Tallwise's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Height Predictor sells 2 in-app purchases, starting at $2.99 per 7 days and Tallwise sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

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

## The numbers

| Metric | Height Predictor | Tallwise |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 days |
| Size | 38 MB | 8 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Han Kim](https://appshunter.io/developer/1505146544) | [Amir Alagic](https://appshunter.io/developer/1842715934) |

## What reviewers say

### 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 |


### Tallwise

[App page](https://appshunter.io/ios/app/tallwise-height-predictor/id6810679284)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $1.99 | per month |
| Tallwise Plus | $4.99 | per 7 days |
| Tallwise Plus | $34.99 | per year |
| Plus Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Height Predictor free?

Height Predictor is free to download, with in-app purchases available.

### Is Tallwise free?

Tallwise is free to download, with in-app purchases available.

### Do Height Predictor or Tallwise have ads?

Neither Height Predictor nor Tallwise shows ads.

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

Height Predictor ships an update every 3 days, and Tallwise every 4 days. Most recently, Height Predictor was updated on October 3, 2026 and Tallwise on October 4, 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.*