# Einstein™ Brain Training HD vs Hitori Pro

The clearest difference is in-app purchases: Einstein™ Brain Training HD at none against Hitori Pro's 10. Einstein™ Brain Training HD also leads on rating (4.4 vs 4.0) and ratings volume (48 vs 5). Hitori Pro's advantage is review sentiment (100% vs 81%) and price ($0.99 vs $2.99). On update cadence, ads, monetization model and chart position there is nothing between them.

Einstein™ Brain Training HD costs $2.99 and Hitori Pro $0.99 up front. Hitori Pro sells 10 one-off in-app purchases. Einstein™ Brain Training HD asks for nothing beyond the download.

Einstein™ Brain Training HD holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Einstein™ Brain Training HD has 48 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 81% of Einstein™ Brain Training HD's written reviews are positive against 100% of Hitori Pro's, so the app with the better star average is not the one people write more warmly about.

Einstein™ Brain Training HD ships an update every 2 months, Hitori Pro monthly. The most recent releases landed on September 27, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Einstein™ Brain Training HD | Hitori Pro |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[4.4 (48 ratings)](https://appshunter.io/ios/app/einstein-brain-training-hd/id455578451/reviews)** | [4.0 (5 ratings)](https://appshunter.io/ios/app/hitori-pro/id1264501421/reviews) |
| Number of ratings | **48** | 5 |
| Positive reviews | 81.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Paid | Paid |
| Best chart rank | **#87** | #140 |
| Size | 1.0 GB | 11 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [BBG Entertainment GmbH](https://appshunter.io/developer/416798604) | [Christian Lueth](https://appshunter.io/developer/1041680819) |

## What reviewers say

### Einstein™ Brain Training HD

[App page](https://appshunter.io/ios/app/einstein-brain-training-hd/id455578451)

**Currently charting:** #87 Top Paid · Trivia (US App Store)

Engage in 30 memory, math, and logic games designed to keep your mind sharp. Daily exercises, guided by Albert Einstein, help you understand how your brain is activated and supported through training.

**Highlights:** 30 cognitive training games, Scientific background for exercises, Daily brain health tests, Intuitive operation, Guidance from Albert Einstein, Dynamic difficulty adjustment, Detailed player statistics

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💰 Affordable one-time payment
- 🧠 Effective brain training exercises
- 👍 Variety of challenging games
- 📈 Tracks progress and performance
- 🎮 Fun and engaging experience

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- ⏱️ Timed exercises can be frustrating
- 🖥️ Outdated graphics and UI
- 🔄 Lack of updates and new content
- 🔍 Unclear instructions for some games

**Reported bugs**

- Fruit basket game not registering correct answers
- Point of view game having unclear instructions
- Keyboard not appearing in some games
- Crashes and freezes on certain devices
- Visual glitches and overlapping elements

**Requested features**

- Add option to adjust game difficulty
- Implement social features for competition
- Include more detailed performance tracking
- Provide ability to review past results
- Add support for multiple user profiles


### Hitori Pro

[App page](https://appshunter.io/ios/app/hitori-pro/id1264501421)

**Currently charting:** #140 Top Paid · Trivia (US App Store)

This logic puzzle game offers a unique challenge based on Japanese "leave me alone" rules. It features multiple difficulty levels, layouts, and languages, with additional puzzle packs available for purchase. Enjoy a completely ad-free experience on your Apple devices.

**Highlights:** Multiple difficulty levels, Light, dark, and coffee layouts, English and German language support, Game Center integration, Portrait and landscape modes, Pinch-to-zoom functionality

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| L01: Puzzle Pack 1 (24 puzzle) | $0.99 | one-time |
| A01: Greenhorn 1 (20 puzzles) | $0.99 | one-time |
| B01: Beginner 1 (20 puzzles) | $0.99 | one-time |
| C01: Advanced 1 (20 puzzles) | $0.99 | one-time |
| D01: Amateur 1 (20 puzzles) | $0.99 | one-time |
| E01: Professio. 1 (20 puzzles) | $0.99 | one-time |
| F01: Expert 1 (20 puzzles) | $0.99 | one-time |
| G01: Whiz 1 (20 puzzles) | $0.99 | one-time |
| H01: Grandmast. 1 (20 puzzles) | $0.99 | one-time |
| X01: Mega Pack 1 (160 puzzles) | $1.99 | one-time |


## Frequently asked questions

### Is Einstein™ Brain Training HD free?

Einstein™ Brain Training HD costs $2.99, with no in-app purchases.

### Is Hitori Pro free?

Hitori Pro costs $0.99, and also offers in-app purchases.

### Which has better reviews, Einstein™ Brain Training HD or Hitori Pro?

Einstein™ Brain Training HD is rated higher. Einstein™ Brain Training HD averages 4.4 out of 5 from 48 ratings, while Hitori Pro averages 4.0 from 5 ratings.

### Do Einstein™ Brain Training HD or Hitori Pro have ads?

Neither Einstein™ Brain Training HD nor Hitori Pro shows ads.

### Which is updated more often, Einstein™ Brain Training HD or Hitori Pro?

Einstein™ Brain Training HD ships an update every 2 months, and Hitori Pro monthly. Most recently, Einstein™ Brain Training HD was updated on September 27, 2026 and Hitori Pro on September 10, 2026.

### Which is more popular, Einstein™ Brain Training HD or Hitori Pro?

Einstein™ Brain Training HD currently peaks at #87 in the App Store charts, and Hitori Pro at #140. Chart position reflects recent download velocity rather than total install base.

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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.*