# Brain Quest! vs Erase logic

The clearest difference is ads: Erase logic at none against Brain Quest!'s shown. Brain Quest!'s advantage is update cadence (every 3 days vs weekly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Brain Quest! ships an update every 3 days, Erase logic weekly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Brain Quest! | Erase logic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Weekly |
| Size | 90 MB | 585 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [淑芳 董](https://appshunter.io/developer/1552143699) | [ismail budak](https://appshunter.io/developer/1604970530) |

## What reviewers say

### Brain Quest!

[App page](https://appshunter.io/ios/app/brain-quest/id6450915160)

**In-app purchases:** none


### Erase logic

[App page](https://appshunter.io/ios/app/erase-logic-solve-and-delete/id6479376948)

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

**In-app purchases:** none


## Frequently asked questions

### Is Brain Quest! free?

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

### Is Erase logic free?

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

### Do Brain Quest! or Erase logic have ads?

Brain Quest! shows ads; Erase logic does not.

### Which is updated more often, Brain Quest! or Erase logic?

Brain Quest! ships an update every 3 days, and Erase logic weekly. Most recently, Brain Quest! was updated on November 7, 2026 and Erase logic on November 4, 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.*