# Reverse Reaction! vs Brainy Lines

The clearest difference is in-app purchases: Brainy Lines at none against Reverse Reaction!'s 8. Reverse Reaction!'s advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Reverse Reaction! sells 8 one-off in-app purchases. Brainy Lines asks for nothing beyond the download.

## The numbers

| Metric | Reverse Reaction! | Brainy Lines |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | — |
| Size | 62 MB | 46 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Percy Ng'uni](https://appshunter.io/developer/1788450936) | [Sanjay Chauhan](https://appshunter.io/developer/1484182234) |

## What reviewers say

### Reverse Reaction!

[App page](https://appshunter.io/ios/app/reverse-reaction/id6758720518)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Space Theme | $0.99 | one-time |
| Sketch Theme | $0.99 | one-time |
| Deep Sea Theme | $0.99 | one-time |
| Retro Theme | $0.99 | one-time |
| Remove Ads Forever | $1.99 | one-time |
| 500 Coins | $1.99 | one-time |
| Remove Ads | $3.00 | one-time |
| 1000 Coins | $4.99 | one-time |


### Brainy Lines

[App page](https://appshunter.io/ios/app/brainy-lines/id6761354755)

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

**In-app purchases:** none


## Frequently asked questions

### Is Reverse Reaction! free?

Reverse Reaction! is free to download, with in-app purchases available.

### Is Brainy Lines free?

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

### Do Reverse Reaction! or Brainy Lines have ads?

Both Reverse Reaction! and Brainy Lines show 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.*