# Pythagoras Interactive vs Number Chase Number Catch

The clearest difference is update cadence: Pythagoras Interactive at every 2 weeks against Number Chase Number Catch's every 5 months. Number Chase Number Catch's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Pythagoras Interactive ships an update every 2 weeks, Number Chase Number Catch every 5 months. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Pythagoras Interactive | Number Chase Number Catch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 1 MB | 12 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALAN PETERSON](https://appshunter.io/developer/1436516782) | [Lutfu Orcun Selbasan](https://appshunter.io/developer/1827809743) |

## What reviewers say

### Pythagoras Interactive

[App page](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389)

Explore the Pythagorean Theorem with an interactive visual tool. Adjust triangle legs to observe real-time changes in square areas and hypotenuse length. Distances are displayed in radical form when necessary.

**Highlights:** Interactive triangle manipulation, Visual representation of squares on sides, Real-time updates to hypotenuse and areas, Radical form for distances, Clear labeling of sides and areas

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

**In-app purchases:** none


### Number Chase Number Catch

[App page](https://appshunter.io/ios/app/number-chase-number-catch/id6748883304)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pythagoras Interactive free?

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

### Is Number Chase Number Catch free?

Number Chase Number Catch is free to download, with no in-app purchases.

### Do Pythagoras Interactive or Number Chase Number Catch have ads?

Neither Pythagoras Interactive nor Number Chase Number Catch shows ads.

### Which is updated more often, Pythagoras Interactive or Number Chase Number Catch?

Pythagoras Interactive ships an update every 2 weeks, and Number Chase Number Catch every 5 months. Most recently, Pythagoras Interactive was updated on October 16, 2026 and Number Chase Number Catch on October 5, 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.*