# Kluchi vs Игры Эйнштейна

The clearest difference is in-app purchases: Игры Эйнштейна at none against Kluchi's 1. Игры Эйнштейна also leads on iOS requirement (13.0 vs 15.6). Kluchi's advantage is update cadence (every 3 weeks vs every 7 months) and device support. On price there is nothing between them.

Both are free to download. Kluchi sells 1 one-off in-app purchase. Игры Эйнштейна asks for nothing beyond the download.

Kluchi ships an update every 3 weeks, Игры Эйнштейна every 7 months. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kluchi | Игры Эйнштейна |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kluchi/id1182879708/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 16 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 12+ |
| Developer | [Maxim Polous](https://appshunter.io/developer/560072891) | [Amina Matova](https://appshunter.io/developer/1885591360) |

## What reviewers say

### Kluchi

[App page](https://appshunter.io/ios/app/kluchi/id1182879708)

This puzzle game challenges players to strategically place all keys onto a table. Utilize unique key connectors and special "neighbors" mechanics to solve increasingly complex arrangements. Hints are available to assist when you get stuck.

**Highlights:** Key placement puzzle, Unique connector mechanics, Special 'neighbors' keys, Hint system, Brain training benefits, New puzzle type

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 9 hints | $0.99 | one-time |


### Игры Эйнштейна

[App page](https://appshunter.io/ios/app/id6760686723)

**In-app purchases:** none


## Frequently asked questions

### Is Kluchi free?

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

### Is Игры Эйнштейна free?

Игры Эйнштейна is free to download, with no in-app purchases.

### Which is updated more often, Kluchi or Игры Эйнштейна?

Kluchi ships an update every 3 weeks, and Игры Эйнштейна every 7 months. Most recently, Kluchi was updated on October 6, 2026 and Игры Эйнштейна on October 24, 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.*