# Brain Flash vs Common Thread Game

The clearest difference is rating: Common Thread Game at 4.5 against Brain Flash's 3.5. Common Thread Game also leads on update cadence (every 3 months vs every 25 months). Brain Flash's advantage is ads (none vs shown) and ratings volume (26 vs 2). On price, 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.

Common Thread Game holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Brain Flash has 26 ratings behind it against 2, so its average is the more settled of the two.

Brain Flash ships an update every 25 months, Common Thread Game every 3 months. Both last shipped on September 30, 2026.

## The numbers

| Metric | Brain Flash | Common Thread Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (26 ratings)](https://appshunter.io/ios/app/brain-flash-mind-training/id1062164869/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/common-thread-game/id1633268069/reviews)** |
| Number of ratings | **26** | 2 |
| Positive reviews | 56.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | **Every 3 months** |
| Monetization | **Free** | Ad-supported |
| Size | 56 MB | 36 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PPCLINK Software](https://appshunter.io/developer/833424538) | [Dogfish Technologies, LLC](https://appshunter.io/developer/1197710360) |

## What reviewers say

### Brain Flash

[App page](https://appshunter.io/ios/app/brain-flash-mind-training/id1062164869)

Engage your mind with six unique mini-games designed to boost cognitive abilities. Test your reflexes, memory, and pattern recognition in fast-paced challenges.

**Highlights:** Rock-paper-scissors with color rules, Speed card matching, True color perception challenge, Conditional tapping game, Directional swipe game, Identify unique patterns

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

**In-app purchases:** none


### Common Thread Game

[App page](https://appshunter.io/ios/app/common-thread-game/id1633268069)

Connect images by finding their shared theme. This game offers a blend of simple and challenging puzzles that test your observation skills. Unravel hidden links between diverse visuals.

**Highlights:** Image connection puzzles, Diverse captivating visuals, Simple and challenging gameplay, Tests observational skills, Hidden link discovery

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Brain Flash free?

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

### Is Common Thread Game free?

Common Thread Game is free to download, with no in-app purchases.

### Which has better reviews, Brain Flash or Common Thread Game?

Common Thread Game is rated higher. Brain Flash averages 3.5 out of 5 from 26 ratings, while Common Thread Game averages 4.5 from 2 ratings.

### Do Brain Flash or Common Thread Game have ads?

Common Thread Game shows ads; Brain Flash does not.

### Which is updated more often, Brain Flash or Common Thread Game?

Brain Flash ships an update every 25 months, and Common Thread Game every 3 months. Most recently, Brain Flash was updated on September 30, 2026 and Common Thread Game on September 30, 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.*