# MindSpark vs Reaction

The clearest difference is in-app purchases: MindSpark at none against Reaction's 1. MindSpark also leads on update cadence (every 5 days vs every 3 weeks). Reaction's advantage is iOS requirement (18.0 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. Reaction sells 1 one-off in-app purchase. MindSpark asks for nothing beyond the download.

MindSpark ships an update every 5 days, Reaction every 3 weeks. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | MindSpark | Reaction |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/reaction-brain-training/id6782079111/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 11 MB |
| Requires iOS | 26.4 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [fabrizio chimienti](https://appshunter.io/developer/955155245) | [EKIN EMRE ATASOY](https://appshunter.io/developer/1782126325) |

## What reviewers say

### MindSpark

[App page](https://appshunter.io/ios/app/mindspark-brain-training/id6761559999)

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

**In-app purchases:** none


### Reaction

[App page](https://appshunter.io/ios/app/reaction-brain-training/id6782079111)

Engage in quick, focused daily brain-training sessions with a variety of games designed to enhance cognitive skills. Track your progress, compete on leaderboards, and build a consistent mental fitness habit. Enjoy offline play and an ad-free option.

**Highlights:** 11 quick brain-training games, Daily Challenge and streak tracking, Global leaderboards, Detailed skill rating and progress tracking, Offline play, Ad-free option with one-time purchase

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is MindSpark free?

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

### Is Reaction free?

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

### Do MindSpark or Reaction have ads?

Both MindSpark and Reaction show ads.

### Which is updated more often, MindSpark or Reaction?

MindSpark ships an update every 5 days, and Reaction every 3 weeks. Most recently, MindSpark was updated on October 19, 2026 and Reaction on October 18, 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.*