# 毎日 脳トレ vs Chitin

The clearest difference is in-app purchases: 毎日 脳トレ at none against Chitin's 2. 毎日 脳トレ also leads on update cadence (every 6 days vs every 2 months) and device support (3 vs 1). Chitin's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. Chitin sells 2 in-app purchases, starting at $2.99 per month. 毎日 脳トレ asks for nothing beyond the download.

毎日 脳トレ ships an update every 6 days, Chitin every 2 months. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 毎日 脳トレ | Chitin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (197 ratings)](https://appshunter.io/ios/app/15/id1579132658/reviews)** | — |
| Number of ratings | **197** | — |
| Positive reviews | 65.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 134 MB | 6 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [nullhouse Inc.](https://appshunter.io/developer/853672308) | [Ata Tunc Bilge](https://appshunter.io/developer/6777584860) |

## What reviewers say

### 毎日 脳トレ

[App page](https://appshunter.io/ios/app/15/id1579132658)

Engage in daily brain training with over 20 mini-games designed to diagnose and improve cognitive functions like memory, attention, and calculation. Track your progress with visual aids and unlock new challenges as you play.

**Highlights:** Daily brain diagnostics, 26 diverse mini-games, Progress tracking and visualization, Goal achievement and rewards, Customizable appearance, Daily training reminders

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

**In-app purchases:** none


### Chitin

[App page](https://appshunter.io/ios/app/chitin-bug-identifier/id6785862909)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chitin Pro Monthly | $2.99 | per month |
| Chitin Pro Yearly | $32.99 | per year |


## Frequently asked questions

### Is 毎日 脳トレ free?

毎日 脳トレ is free to download, with no in-app purchases.

### Is Chitin free?

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

### Do 毎日 脳トレ or Chitin have ads?

毎日 脳トレ shows ads; Chitin does not.

### Which is updated more often, 毎日 脳トレ or Chitin?

毎日 脳トレ ships an update every 6 days, and Chitin every 2 months. Most recently, 毎日 脳トレ was updated on November 3, 2026 and Chitin on November 2, 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.*