# 脳トレ21 vs ChillJigsawSolitaire

The clearest difference is update cadence: ChillJigsawSolitaire at every 2 weeks against 脳トレ21's every 3 months. 脳トレ21's advantage is iOS requirement (11.0 vs 15.0). 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.

脳トレ21 ships an update every 3 months, ChillJigsawSolitaire every 2 weeks. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 脳トレ21 | ChillJigsawSolitaire |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (1.4K ratings)](https://appshunter.io/ios/app/chilljigsawsolitaire/id6808982582/reviews)** |
| Number of ratings | — | **1.4K** |
| Positive reviews | — | 68.2% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 107 MB | 209 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [Muhammad Ahmad](https://appshunter.io/developer/1749335512) |

## What reviewers say

### 脳トレ21

[App page](https://appshunter.io/ios/app/21/id1471846944)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChillJigsawSolitaire

[App page](https://appshunter.io/ios/app/chilljigsawsolitaire/id6808982582)

This casual puzzle game merges jigsaw puzzles with card mechanics. Match four cards to reveal a piece of an image, then watch as completed pictures clear the board, allowing new cards to fall and continue the challenge. It's a relaxing way to unwind by piecing together beautiful pictures.

**Highlights:** Match four cards to form a complete image, Completed pictures clear space for new cards, Use visual details to find matching pieces, Relaxing unwind experience, Casual puzzle gameplay

**In-app purchases:** none


## Frequently asked questions

### Is 脳トレ21 free?

脳トレ21 is free to download, with no in-app purchases.

### Is ChillJigsawSolitaire free?

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

### Do 脳トレ21 or ChillJigsawSolitaire have ads?

Both 脳トレ21 and ChillJigsawSolitaire show ads.

### Which is updated more often, 脳トレ21 or ChillJigsawSolitaire?

脳トレ21 ships an update every 3 months, and ChillJigsawSolitaire every 2 weeks. Most recently, 脳トレ21 was updated on November 11, 2026 and ChillJigsawSolitaire on November 10, 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.*