# Brain Drain vs Mental Math Practice & Riddles

The clearest difference is in-app purchases: Brain Drain at none against Mental Math Practice & Riddles's 7. Brain Drain also leads on iOS requirement (10.0 vs 13.4). Mental Math Practice & Riddles's advantage is update cadence (every 3 weeks vs every 28 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Mental Math Practice & Riddles sells 7 in-app purchases, starting at $0.99 per month. Brain Drain asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Brain Drain against 5.0 for Mental Math Practice & Riddles. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Brain Drain ships an update every 28 months, Mental Math Practice & Riddles every 3 weeks. Both last shipped on October 15, 2026.

## The numbers

| Metric | Brain Drain | Mental Math Practice & Riddles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/brain-drain-a-quick-math-game/id1477237865/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/mental-math-practice-and-riddles/id6463495405/reviews) |
| Number of ratings | **2** | 1 |
| Positive 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 | 34 MB |
| Requires iOS | **10.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Back Alley Technology](https://appshunter.io/developer/1477237864) | [Yesno Labs](https://appshunter.io/developer/1704491583) |

## 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


### Mental Math Practice & Riddles

[App page](https://appshunter.io/ios/app/mental-math-practice-and-riddles/id6463495405)

Enhance your arithmetic and logic skills with engaging mini-games and puzzles. This app offers a variety of challenges, from timed math practices to creative equation building, designed to sharpen your cognitive abilities in a fun and relaxing way.

**Highlights:** Mental math challenges, Cross Math puzzles, Math riddles, Timed math practices, Connect numbers puzzles, Build equations, Reach the number challenges

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yosu Limited Offer: 1 month | $0.99 | per month |
| Yosu Limited Offer: 3 months | $1.99 | per 3 months |
| Yosu Math Premium: 1 month | $2.99 | per month |
| Yosu Limited Offer: 1 year | $4.99 | per year |
| Yosu Math Premium: 3 months | $5.99 | per 3 months |
| Yosu Math Premium: 1 year | $14.99 | per year |
| Yosu Math Limited Offer | $3.99 | one-time |


## Frequently asked questions

### Is Brain Drain free?

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

### Is Mental Math Practice & Riddles free?

Mental Math Practice & Riddles is free to download, with in-app purchases available.

### Which has better reviews, Brain Drain or Mental Math Practice & Riddles?

Brain Drain and Mental Math Practice & Riddles are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Brain Drain or Mental Math Practice & Riddles have ads?

Both Brain Drain and Mental Math Practice & Riddles show ads.

### Which is updated more often, Brain Drain or Mental Math Practice & Riddles?

Brain Drain ships an update every 28 months, and Mental Math Practice & Riddles every 3 weeks. Most recently, Brain Drain was updated on October 15, 2026 and Mental Math Practice & Riddles on October 15, 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.*