# ReactionAtlas vs Charged Physics Lab

The clearest difference is in-app purchases: Charged Physics Lab at none against ReactionAtlas's 1. Charged Physics Lab also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. ReactionAtlas sells 1 one-off in-app purchase. Charged Physics Lab asks for nothing beyond the download.

## The numbers

| Metric | ReactionAtlas | Charged Physics Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 60 MB | 172 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Xiangqian Liu](https://appshunter.io/developer/6784624826) | [Charged Alpha](https://appshunter.io/developer/6789744884) |

## What reviewers say

### ReactionAtlas

[App page](https://appshunter.io/ios/app/reactionatlas/id6792311020)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReactionAtlas Pro | $7.99 | one-time |


### Charged Physics Lab

[App page](https://appshunter.io/ios/app/charged-physics-lab/id6794717292)

**In-app purchases:** none


## Frequently asked questions

### Is ReactionAtlas free?

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

### Is Charged Physics Lab free?

Charged Physics Lab is free to download, with no in-app purchases.

### Do ReactionAtlas or Charged Physics Lab have ads?

Neither ReactionAtlas nor Charged Physics Lab shows ads.

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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.*