# Einstein™ Brain Training vs Polyx 2D

The clearest difference is price: Polyx 2D at Free against Einstein™ Brain Training's $2.99. Polyx 2D also leads on rating (5.0 vs 4.3) and update cadence (every 3 days vs every 2 months). Einstein™ Brain Training's advantage is ratings volume (26 vs 2) and chart position (#66 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Polyx 2D is free to download; Einstein™ Brain Training costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Polyx 2D holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Einstein™ Brain Training has 26 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 86% of Einstein™ Brain Training's written reviews are positive against 100% of Polyx 2D's.

Einstein™ Brain Training ships an update every 2 months, Polyx 2D every 3 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Einstein™ Brain Training | Polyx 2D |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.3 (26 ratings)](https://appshunter.io/ios/app/einstein-brain-training/id516023543/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/polyx-2d-falling-blocks/id6810485023/reviews)** |
| Number of ratings | **26** | 2 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Paid | **Free** |
| Best chart rank | **#66** | — |
| Size | 1.0 GB | 73 MB |
| Requires iOS | **7.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BBG Entertainment GmbH](https://appshunter.io/developer/416798604) | [Skippy Skipmo LLC](https://appshunter.io/developer/1875578496) |

## What reviewers say

### Einstein™ Brain Training

[App page](https://appshunter.io/ios/app/einstein-brain-training/id516023543)

**Currently charting:** #66 Top Paid · Trivia (US App Store)

Engage in 30 daily memory, math, and logic games designed to keep your mind sharp. Guided by Albert Einstein, this app offers scientific explanations for each exercise and tracks your progress with detailed statistics.

**Highlights:** 30 cognitive training games, Scientific background for exercises, Daily brain health tests, Dynamic difficulty adjustment, Detailed player statistics, Multiplayer profiles

**In-app purchases:** none

**What reviewers like**

- 🧠 Effective brain training exercises
- 💰 Affordable pricing compared to competitors
- 🎮 Variety of different game types
- 🎨 Colorful and appealing graphics
- 📊 Data-backed training methodology

**What reviewers complain about**

- 🐛 Touch input not registering properly
- ⏱️ Slow interface and loading times
- 📱 Small buttons and text on mobile screens
- 🎯 Screen sliding/navigation issues
- 🎨 Poor color contrast for colorblind users

**Reported bugs**

- Touch input not registering correct button presses
- Screen unintentionally slides left during gameplay
- Robo's Path game unplayable after updates
- Rock, Paper, Scissors game shows incorrect results
- Catch Me If You Can doesn't respond to finger input

**Requested features**

- Larger buttons and text for better usability
- Ability to pause games mid-play
- More frequent updates and new games
- Multiplayer/competitive features with other users
- Better progress analytics and score comparison


### Polyx 2D

[App page](https://appshunter.io/ios/app/polyx-2d-falling-blocks/id6810485023)

A classic falling block puzzle game with 35 unique shapes and 18 challenging levels. Compete solo or challenge friends in real-time online battles with customizable controls and visual styles. Unlock achievements and climb leaderboards.

**Highlights:** 35 unique shapes, 18 challenging levels, Real-time online battles, Game Center leaderboards, Unlockable achievements, Customizable controls and visual styles

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

**In-app purchases:** none


## Frequently asked questions

### Is Einstein™ Brain Training free?

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

### Is Polyx 2D free?

Polyx 2D is free to download, with no in-app purchases.

### Which has better reviews, Einstein™ Brain Training or Polyx 2D?

Polyx 2D is rated higher. Einstein™ Brain Training averages 4.3 out of 5 from 26 ratings, while Polyx 2D averages 5.0 from 2 ratings.

### Do Einstein™ Brain Training or Polyx 2D have ads?

Neither Einstein™ Brain Training nor Polyx 2D shows ads.

### Which is updated more often, Einstein™ Brain Training or Polyx 2D?

Einstein™ Brain Training ships an update every 2 months, and Polyx 2D every 3 days. Most recently, Einstein™ Brain Training was updated on October 14, 2026 and Polyx 2D on October 7, 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.*