# Sum of Angles of Triangle vs Experimentor

The clearest difference is in-app purchases: Sum of Angles of Triangle at none against Experimentor's 6. Sum of Angles of Triangle also leads on device support and iOS requirement (12.0 vs 18.0). On price there is nothing between them.

Both are free to download. Experimentor sells 6 one-off in-app purchases. Sum of Angles of Triangle asks for nothing beyond the download.

## The numbers

| Metric | Sum of Angles of Triangle | Experimentor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Size | 24 MB | 20 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Science Education Institute](https://appshunter.io/developer/1439710468) | [Feraco media Inc.](https://appshunter.io/developer/497957884) |

## What reviewers say

### Sum of Angles of Triangle

[App page](https://appshunter.io/ios/app/sum-of-angles-of-triangle/id6736590695)

**Features:** macOS Compatibility

**In-app purchases:** none


### Experimentor

[App page](https://appshunter.io/ios/app/experimentor/id6761420708)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Forces & Motion Lab Pack | $2.99 | one-time |
| Waves & Sound Lab Pack | $2.99 | one-time |
| Earth & Weather Lab Pack | $2.99 | one-time |
| Energy Lab Pack | $2.99 | one-time |
| Magnets & Fields Lab Pack | $2.99 | one-time |
| All Lab Packs | $9.99 | one-time |


## Frequently asked questions

### Is Sum of Angles of Triangle free?

Sum of Angles of Triangle is free to download, with no in-app purchases.

### Is Experimentor free?

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

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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.*