# Brain Riddle vs Clear 4

The clearest difference is update cadence: Clear 4 at fortnightly against Brain Riddle's every 18 months. Brain Riddle's advantage is iOS requirement (10.0 vs 12.0). 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.

Brain Riddle ships an update every 18 months, Clear 4 fortnightly. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Brain Riddle | Clear 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/clear-4/id1546584385/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 18 months | **Fortnightly** |
| Monetization | — | Ad-supported |
| Size | 53 MB | 74 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [跃峰 杨](https://appshunter.io/developer/1687429670) | [文锋 郑](https://appshunter.io/developer/1590995911) |

## What reviewers say

### Brain Riddle

[App page](https://appshunter.io/ios/app/brain-riddle-tricky-puzzles/id1359508537)

**Features:** macOS Compatibility

**In-app purchases:** none


### Clear 4

[App page](https://appshunter.io/ios/app/clear-4/id1546584385)

A free puzzle game where players strategically click squares to trigger chain reactions and clear the board. It features simple mechanics with elements like rotating baffles and black holes to add complexity.

**Highlights:** Chain reaction gameplay, Strategic square clicking, Rotating baffles, Black holes, Limited steps to clear levels

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Brain Riddle free?

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

### Is Clear 4 free?

Clear 4 is free to download, with no in-app purchases.

### Do Brain Riddle or Clear 4 have ads?

Both Brain Riddle and Clear 4 show ads.

### Which is updated more often, Brain Riddle or Clear 4?

Brain Riddle ships an update every 18 months, and Clear 4 fortnightly. Most recently, Brain Riddle was updated on October 4, 2026 and Clear 4 on October 12, 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.*