# Reverse Reaction! vs Chain Rules

The clearest difference is in-app purchases: Chain Rules at none against Reverse Reaction!'s 8. Reverse Reaction!'s advantage is iOS requirement (13.0 vs 15.0). 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. Chain Rules asks for nothing beyond the download.

## The numbers

| Metric | Reverse Reaction! | Chain Rules |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/chain-rules/id6759476349/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | — |
| Monetization | — | Ad-supported |
| Size | 62 MB | 13 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Percy Ng'uni](https://appshunter.io/developer/1788450936) | [Upstream Partners, LLC](https://appshunter.io/developer/1864248680) |

## 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 |


### Chain Rules

[App page](https://appshunter.io/ios/app/chain-rules/id6759476349)

A block-matching puzzle game where you strategically remove blocks and trigger chain reactions. Between rounds, select unique abilities that alter gameplay, offering a fresh challenge with each session. Enjoy varied difficulty modes and high score tracking.

**Highlights:** Block matching gameplay, Trigger chain reactions, Select game-altering abilities, Dynamic board challenges, Multiple difficulty modes, High score tracking, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reverse Reaction! free?

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

### Is Chain Rules free?

Chain Rules is free to download, with no in-app purchases.

### Do Reverse Reaction! or Chain Rules have ads?

Both Reverse Reaction! and Chain Rules 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.*