# Reaction Training vs 100 Grid Challenge

The clearest difference is update cadence: 100 Grid Challenge at every 3 weeks against Reaction Training's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Reaction Training ships an update every 3 months, 100 Grid Challenge every 3 weeks. The most recent releases landed on September 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Reaction Training | 100 Grid Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Ad-supported |
| Size | 26 MB | 12 MB |
| Requires iOS | 15.6 | **15.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [matteo poggesi](https://appshunter.io/developer/1764311112) |

## What reviewers say

### Reaction Training

[App page](https://appshunter.io/ios/app/reaction-training-number/id1673299931)

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

**In-app purchases:** none


### 100 Grid Challenge

[App page](https://appshunter.io/ios/app/100-grid-challenge/id6670337983)

This is a strategic block puzzle game where players navigate a 10x10 grid to reach a score of 100. It combines elements of number matching and grid movement, offering a unique brain-training experience for all ages.

**Highlights:** 10x10 grid navigation, Reach a score of 100, Strategic move planning, Global leaderboards, Brain-training puzzles, Intuitive design, Endless replayability

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Training free?

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

### Is 100 Grid Challenge free?

100 Grid Challenge is free to download, with no in-app purchases.

### Do Reaction Training or 100 Grid Challenge have ads?

Both Reaction Training and 100 Grid Challenge show ads.

### Which is updated more often, Reaction Training or 100 Grid Challenge?

Reaction Training ships an update every 3 months, and 100 Grid Challenge every 3 weeks. Most recently, Reaction Training was updated on September 17, 2026 and 100 Grid Challenge on October 24, 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.*