# Intelligence Test vs The Einstein`s Riddle

The clearest difference is in-app purchases: The Einstein`s Riddle at none against Intelligence Test's 1. The Einstein`s Riddle also leads on update cadence (every 3 weeks vs every 5 months) and review sentiment (41% vs 30%). Intelligence Test's advantage is rating (4.5 vs 4.3). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Intelligence Test sells 1 one-off in-app purchase. The Einstein`s Riddle asks for nothing beyond the download.

Intelligence Test holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 16 and 28 respectively. Written reviews complicate that: 30% of Intelligence Test's written reviews are positive against 41% of The Einstein`s Riddle's, so the app with the better star average is not the one people write more warmly about.

Intelligence Test ships an update every 5 months, The Einstein`s Riddle every 3 weeks. The most recent releases landed on September 13, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Intelligence Test | The Einstein`s Riddle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (16 ratings)](https://appshunter.io/ios/app/intelligence-test/id1470777147/reviews)** | [4.3 (28 ratings)](https://appshunter.io/ios/app/the-einsteins-riddle/id1494038665/reviews) |
| Number of ratings | 16 | **28** |
| Positive reviews | 30.0% of reviews | **41.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 56 MB | 47 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Horea Bucerzan](https://appshunter.io/developer/1459301615) | [Rodrigo Daboit](https://appshunter.io/developer/1317514980) |

## What reviewers say

### Intelligence Test

[App page](https://appshunter.io/ios/app/intelligence-test/id1470777147)

Discover your IQ with a free intelligence test. Get instant results to see if you measure up to genius levels. This game offers a quick way to assess your cognitive abilities.

**Highlights:** Free intelligence test, Instant IQ score, Assess cognitive abilities, Suitable for all ages, Available on iOS devices

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra Content + Ad-Free | $3.99 | one-time |


### The Einstein`s Riddle

[App page](https://appshunter.io/ios/app/the-einsteins-riddle/id1494038665)

Engage your mind with challenging logic puzzles, including a modern take on the classic 15 Puzzle and the timeless Peg Solitaire. Test your reasoning skills with evolving rules and progressive difficulty across various game modes, designed to keep your brain sharp and active.

**Highlights:** Logic puzzle experience, Slide Puzzle (15 Puzzle), Peg Solitaire, Multiple game modes (Classic, Timer, Challenge), Progressive campaign mode, Modern visuals and animations, Brain training exercises

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Intelligence Test free?

Intelligence Test is free to download, with in-app purchases available.

### Is The Einstein`s Riddle free?

The Einstein`s Riddle is free to download, with no in-app purchases.

### Which has better reviews, Intelligence Test or The Einstein`s Riddle?

Intelligence Test is rated higher. Intelligence Test averages 4.5 out of 5 from 16 ratings, while The Einstein`s Riddle averages 4.3 from 28 ratings.

### Do Intelligence Test or The Einstein`s Riddle have ads?

Neither Intelligence Test nor The Einstein`s Riddle shows ads.

### Which is updated more often, Intelligence Test or The Einstein`s Riddle?

Intelligence Test ships an update every 5 months, and The Einstein`s Riddle every 3 weeks. Most recently, Intelligence Test was updated on September 13, 2026 and The Einstein`s Riddle on June 1, 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.*