# TallCenter vs Height Predictor for Teens

The clearest difference is update cadence: Height Predictor for Teens at every 4 days against TallCenter's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. TallCenter sells 2 in-app purchases, starting at $4.99 per month and Height Predictor for Teens sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

TallCenter ships an update every 5 weeks, Height Predictor for Teens every 4 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | TallCenter | Height Predictor for Teens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Size | 114 MB | 38 MB |
| Requires iOS | 16 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KungHung Shen](https://appshunter.io/developer/1862724674) | [Han Kim](https://appshunter.io/developer/1505146544) |

## What reviewers say

### TallCenter

[App page](https://appshunter.io/ios/app/tallcenter-height-predictor/id6797482622)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TallCenter Pro Monthly | $4.99 | per month |
| TallCenter Pro Yearly | $39.99 | per year |


### Height Predictor for Teens

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

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $19.99 | per year |
| Heightcast Pro | $2.99 | one-time |


## Frequently asked questions

### Is TallCenter free?

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

### Is Height Predictor for Teens free?

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

### Do TallCenter or Height Predictor for Teens have ads?

Neither TallCenter nor Height Predictor for Teens shows ads.

### Which is updated more often, TallCenter or Height Predictor for Teens?

TallCenter ships an update every 5 weeks, and Height Predictor for Teens every 4 days. Most recently, TallCenter was updated on November 6, 2026 and Height Predictor for Teens on November 6, 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.*