# Find The Difference vs Brain Drain

The clearest difference is update cadence: Find The Difference at every 3 months against Brain Drain's every 28 months. Find The Difference also leads on ratings volume (2.5K vs 2). Brain Drain's advantage is rating (5.0 vs 4.7) and monetization model (ad-supported vs free with in-app purchases). 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 Drain holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Find The Difference has 2.5K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 91% of Find The Difference's written reviews are positive against 100% of Brain Drain's.

Find The Difference ships an update every 3 months, Brain Drain every 28 months. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Find The Difference | Brain Drain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (2.5K ratings)](https://appshunter.io/ios/app/find-the-difference-games/id1455361120/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-drain-a-quick-math-game/id1477237865/reviews)** |
| Number of ratings | **2.5K** | 2 |
| Positive reviews | 91.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 28 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 103 MB | 92 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [冬梅 杨](https://appshunter.io/developer/995621928) | [Back Alley Technology](https://appshunter.io/developer/1477237864) |

## What reviewers say

### Find The Difference

[App page](https://appshunter.io/ios/app/find-the-difference-games/id1455361120)

This free puzzle game challenges you to find hidden differences between two seemingly identical images. With over 3000 levels and 15,000+ differences across more than 30 themes, it's a great way to train your observation skills and relax your brain. Use hints if you get stuck and enjoy beautiful HD pictures on any device.

**Highlights:** 3000+ levels, 15,000+ differences, 30+ themes, HD pictures, Progress saving, Hint system

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

**In-app purchases:** none

**What reviewers like**

- 👍 Relaxing gameplay
- 🧠 Challenging puzzles
- 🎨 Clear, high-quality images
- ⏱️ No time limits
- 💰 Free to play

**What reviewers complain about**

- 🐛 Bugs with zooming and navigation
- 🌐 Excessive ads
- 🔍 Subtle differences can be hard to spot

**Reported bugs**

- Zooming issues when finding differences
- Inability to download new image packs
- Ads that interrupt gameplay

**Requested features**

- More variety of themes and images
- Ability to download additional image packs
- Improved zooming and navigation


### 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


## Frequently asked questions

### Is Find The Difference free?

Find The Difference is free to download, with no in-app purchases.

### Is Brain Drain free?

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

### Which has better reviews, Find The Difference or Brain Drain?

Brain Drain is rated higher. Find The Difference averages 4.7 out of 5 from 2.5K ratings, while Brain Drain averages 5.0 from 2 ratings.

### Do Find The Difference or Brain Drain have ads?

Both Find The Difference and Brain Drain show ads.

### Which is updated more often, Find The Difference or Brain Drain?

Find The Difference ships an update every 3 months, and Brain Drain every 28 months. Most recently, Find The Difference was updated on October 21, 2026 and Brain Drain on October 22, 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.*