# Image Brain vs Einstein's Riddle Logic Puzzle

The clearest difference is price: Einstein's Riddle Logic Puzzle at Free against Image Brain's $2.99. Einstein's Riddle Logic Puzzle also leads on update cadence (every 4 days vs every 7 months). Image Brain's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Einstein's Riddle Logic Puzzle is free to download; Image Brain costs $2.99 up front. Einstein's Riddle Logic Puzzle sells 1 one-off in-app purchase. Image Brain asks for nothing beyond the download.

Image Brain ships an update every 7 months, Einstein's Riddle Logic Puzzle every 4 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Image Brain | Einstein's Riddle Logic Puzzle |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/einsteins-riddle-logic-puzzle/id6751275567/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 57 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) | [Thomas Goossen](https://appshunter.io/developer/1834400595) |

## What reviewers say

### Image Brain

[App page](https://appshunter.io/ios/app/image-brain/id6479590387)

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

**In-app purchases:** none


### Einstein's Riddle Logic Puzzle

[App page](https://appshunter.io/ios/app/einsteins-riddle-logic-puzzle/id6751275567)

Train your brain with a challenging logic puzzle game inspired by Einstein's classic Zebra Puzzle. Match scientists with their correct scientific fields by carefully following clues and using deductive reasoning. Offers multiple difficulty levels for a customizable mental workout.

**Highlights:** Logic grid puzzle gameplay, Match scientists to scientific fields, Multiple difficulty levels, Challenging logic clues, Clean, minimal design, Endless replayability

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Free | $1.99 | one-time |


## Frequently asked questions

### Is Image Brain free?

Image Brain costs $2.99, with no in-app purchases.

### Is Einstein's Riddle Logic Puzzle free?

Einstein's Riddle Logic Puzzle is free to download, with in-app purchases available.

### Do Image Brain or Einstein's Riddle Logic Puzzle have ads?

Einstein's Riddle Logic Puzzle shows ads; Image Brain does not.

### Which is updated more often, Image Brain or Einstein's Riddle Logic Puzzle?

Image Brain ships an update every 7 months, and Einstein's Riddle Logic Puzzle every 4 days. Most recently, Image Brain was updated on October 27, 2026 and Einstein's Riddle Logic Puzzle on October 28, 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.*