# Brain Drain vs Brain Teasers by Pets Riddles

The clearest difference is in-app purchases: Brain Drain at none against Brain Teasers by Pets Riddles's 10. Brain Drain also leads on rating (5.0 vs 4.7) and iOS requirement (10.0 vs 13.0). Brain Teasers by Pets Riddles's advantage is update cadence (every 3 weeks vs every 28 months) and ratings volume (25 vs 2). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Brain Teasers by Pets Riddles sells 10 one-off in-app purchases. Brain Drain asks for nothing beyond the download.

Brain Drain holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Brain Teasers by Pets Riddles has 25 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Brain Drain ships an update every 28 months, Brain Teasers by Pets Riddles every 3 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Brain Drain | Brain Teasers by Pets Riddles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-drain-a-quick-math-game/id1477237865/reviews)** | [4.7 (25 ratings)](https://appshunter.io/ios/app/brain-teasers-by-pets-riddles/id1519559080/reviews) |
| Number of ratings | 2 | **25** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 28 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 92 MB | 321 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Back Alley Technology](https://appshunter.io/developer/1477237864) | [WeWin Technologies LLC](https://appshunter.io/developer/1818271865) |

## What reviewers say

### Brain Drain

[App page](https://appshunter.io/ios/app/brain-drain-a-quick-math-game/id1477237865)

Test your reflexes and quick math skills in this addictive brain game. Compete against friends and players worldwide on the leaderboard with challenging puzzles that boost IQ and memory.

**Highlights:** Quick calculations, Varied math sums (addition, subtraction, multiplication), Competitive global leaderboard, Fast reaction-based gameplay, Nuke power-up for challenging sums, Brain training for IQ and memory

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain Teasers by Pets Riddles

[App page](https://appshunter.io/ios/app/brain-teasers-by-pets-riddles/id1519559080)

Engage your mind with logic puzzles featuring adorable pets. This free game offers endless challenges, creative pet customization, and offline play for all ages. Boost your cognitive skills and enjoy a charming, family-friendly experience.

**Highlights:** Logic puzzles, Pet customization, Offline play, Family-friendly, Brain boosting, Endless challenges

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 150 Keys | $0.99 | one-time |
| 150 Keys | $1.99 | one-time |
| 350 Keys | $1.99 | one-time |
| 300 Keys | $2.99 | one-time |
| 700 Keys | $2.99 | one-time |
| No Ad | $3.99 | one-time |
| 30 Keys | $4.99 | one-time |
| 750 Keys | $4.99 | one-time |
| 1500 Keys | $4.99 | one-time |
| No Ad and get Keys | $4.99 | one-time |


## Frequently asked questions

### Is Brain Drain free?

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

### Is Brain Teasers by Pets Riddles free?

Brain Teasers by Pets Riddles is free to download, with in-app purchases available.

### Which has better reviews, Brain Drain or Brain Teasers by Pets Riddles?

Brain Drain is rated higher. Brain Drain averages 5.0 out of 5 from 2 ratings, while Brain Teasers by Pets Riddles averages 4.7 from 25 ratings.

### Do Brain Drain or Brain Teasers by Pets Riddles have ads?

Both Brain Drain and Brain Teasers by Pets Riddles show ads.

### Which is updated more often, Brain Drain or Brain Teasers by Pets Riddles?

Brain Drain ships an update every 28 months, and Brain Teasers by Pets Riddles every 3 weeks. Most recently, Brain Drain was updated on October 22, 2026 and Brain Teasers by Pets Riddles on October 24, 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.*