# CaliTimer vs Height Predictor AI

The clearest difference is in-app purchases: CaliTimer at none against Height Predictor AI's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Height Predictor AI sells 3 in-app purchases, starting at $4.99 per 7 days. CaliTimer asks for nothing beyond the download.

CaliTimer ships an update every 9 days, Height Predictor AI every 4 days. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | CaliTimer | Height Predictor AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 28 MB | 56 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [LSQUARED LABS LTD](https://appshunter.io/developer/6784380254) | [Redoubt Aps](https://appshunter.io/developer/6823543185) |

## What reviewers say

### CaliTimer

[App page](https://appshunter.io/ios/app/calitimer-calisthenics-timer/id6784380252)

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

**In-app purchases:** none


### Height Predictor AI

[App page](https://appshunter.io/ios/app/height-predictor-ai-tallpath/id6798382636)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Yearly | $29.99 | per year |
| TallPath Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is CaliTimer free?

CaliTimer is free to download, with no in-app purchases.

### Is Height Predictor AI free?

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

### Do CaliTimer or Height Predictor AI have ads?

Neither CaliTimer nor Height Predictor AI shows ads.

### Which is updated more often, CaliTimer or Height Predictor AI?

CaliTimer ships an update every 9 days, and Height Predictor AI every 4 days. Most recently, CaliTimer was updated on October 7, 2026 and Height Predictor AI on October 20, 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.*