# Stroopy vs Reverse Reaction!

The clearest difference is in-app purchases: Stroopy at none against Reverse Reaction!'s 8. On price, update cadence, ads and device support there is nothing between them.

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

Stroopy ships an update every 3 months, Reverse Reaction! every 5 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Stroopy | Reverse Reaction! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 5 months |
| Size | 28 MB | 62 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OLE WebDesign](https://appshunter.io/developer/511936821) | [Percy Ng'uni](https://appshunter.io/developer/1788450936) |

## What reviewers say

### Stroopy

[App page](https://appshunter.io/ios/app/stroopy-mind-challenge/id6758552931)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Stroopy free?

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

### Is Reverse Reaction! free?

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

### Do Stroopy or Reverse Reaction! have ads?

Both Stroopy and Reverse Reaction! show ads.

### Which is updated more often, Stroopy or Reverse Reaction!?

Stroopy ships an update every 3 months, and Reverse Reaction! every 5 months. Most recently, Stroopy was updated on October 31, 2026 and Reverse Reaction! on October 31, 2026.

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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.*