# Brain Test Extreme vs Crazy Brain Lab

The clearest difference is rating: Brain Test Extreme at 5.0 against Crazy Brain Lab's 4.0. Brain Test Extreme also leads on in-app purchases (none vs 5) and update cadence (fortnightly vs monthly). Crazy Brain Lab's advantage is ratings volume (4 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Crazy Brain Lab sells 5 one-off in-app purchases. Brain Test Extreme asks for nothing beyond the download.

Brain Test Extreme holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Brain Test Extreme ships an update fortnightly, Crazy Brain Lab monthly. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Brain Test Extreme | Crazy Brain Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/brain-test-extreme/id1499314678/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/crazy-brain-lab/id1666472277/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 113 MB | 165 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 12+ |
| Developer | [Basement Apps, Inc.](https://appshunter.io/developer/1092009455) | [Guangzhou Miyou Network Technology Co., Ltd.](https://appshunter.io/developer/1666199595) |

## What reviewers say

### Brain Test Extreme

[App page](https://appshunter.io/ios/app/brain-test-extreme/id1499314678)

Engage in a challenging quiz game that appears simple but offers surprising difficulty. Test your intellect and see how many perplexing questions you can solve.

**Highlights:** Challenging quiz format, Deceptively difficult puzzles, Brain training exercises, Intuitive gameplay

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

**In-app purchases:** none


### Crazy Brain Lab

[App page](https://appshunter.io/ios/app/crazy-brain-lab/id1666472277)

This game challenges your intelligence with unconventional puzzles and mind-bending brain teasers. Discover unexpected solutions and enjoy a simple yet addictive experience that will refresh your perspective.

**Highlights:** Unconventional puzzles, Mind-bending brain teasers, Unexpected solutions, Logical but unconventional gameplay, Addictive and funny, Free to download

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 250 bulbs | $1.99 | one-time |
| 500 bulbs | $2.99 | one-time |
| Remove ads | $3.99 | one-time |
| 1,000 bulbs | $4.99 | one-time |
| 2,500 bulbs | $9.99 | one-time |


## Frequently asked questions

### Is Brain Test Extreme free?

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

### Is Crazy Brain Lab free?

Crazy Brain Lab is free to download, with in-app purchases available.

### Which has better reviews, Brain Test Extreme or Crazy Brain Lab?

Brain Test Extreme is rated higher. Brain Test Extreme averages 5.0 out of 5 from 1 ratings, while Crazy Brain Lab averages 4.0 from 4 ratings.

### Do Brain Test Extreme or Crazy Brain Lab have ads?

Both Brain Test Extreme and Crazy Brain Lab show ads.

### Which is updated more often, Brain Test Extreme or Crazy Brain Lab?

Brain Test Extreme ships an update fortnightly, and Crazy Brain Lab monthly. Most recently, Brain Test Extreme was updated on October 12, 2026 and Crazy Brain Lab on October 6, 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.*