# Pythagoras Interactive vs BaseLearn by ChatStick

The clearest difference is in-app purchases: Pythagoras Interactive at none against BaseLearn by ChatStick's 1. Pythagoras Interactive also leads on ads (none vs shown) and iOS requirement (16.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. BaseLearn by ChatStick sells 1 one-off in-app purchase. Pythagoras Interactive asks for nothing beyond the download.

## The numbers

| Metric | Pythagoras Interactive | BaseLearn by ChatStick |
| --- | --- | --- |
| 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** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | — |
| Monetization | Free | — |
| Size | 1 MB | 10 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALAN PETERSON](https://appshunter.io/developer/1436516782) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## 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


### BaseLearn by ChatStick

[App page](https://appshunter.io/ios/app/baselearn-by-chatstick/id6764545234)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BaseLearn Premium Unlock | $1.99 | one-time |


## Frequently asked questions

### Is Pythagoras Interactive free?

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

### Is BaseLearn by ChatStick free?

BaseLearn by ChatStick is free to download, with in-app purchases available.

### Do Pythagoras Interactive or BaseLearn by ChatStick have ads?

BaseLearn by ChatStick shows ads; Pythagoras Interactive does not.

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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.*