# Cipher Challenge vs rush64 chess

The clearest difference is in-app purchases: Cipher Challenge at none against rush64 chess's 2. Cipher Challenge also leads on ads (none vs shown). rush64 chess's advantage is update cadence (every 2 days vs every 5 weeks) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. rush64 chess sells 2 in-app purchases, starting at $1.99 per month. Cipher Challenge asks for nothing beyond the download.

Cipher Challenge ships an update every 5 weeks, rush64 chess every 2 days. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Cipher Challenge | rush64 chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cipher-challenge-codebusters/id6742675455/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 1 MB | 41 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Bao Lei](https://appshunter.io/developer/376966834) | [JUAN HUERTAS PEREZ](https://appshunter.io/developer/6809219784) |

## What reviewers say

### Cipher Challenge

[App page](https://appshunter.io/ios/app/cipher-challenge-codebusters/id6742675455)

Engage your mind with a variety of cipher decoding challenges. Practice different cipher types, track your progress, and compete with friends. Unlock quotes and sync your achievements across devices.

**Highlights:** Multiple cipher modes, Letter frequency analysis, Multiplayer competition, Unlocked quote gallery, Score history tracking, iCloud sync across devices, Hard mode challenge

**Features:** Vision Pro support

**In-app purchases:** none


### rush64 chess

[App page](https://appshunter.io/ios/app/rush64-chess/id6809219782)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rush64 Pro Monthly | $1.99 | per month |
| Rush64 Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is Cipher Challenge free?

Cipher Challenge is free to download, with no in-app purchases.

### Is rush64 chess free?

rush64 chess is free to download, with in-app purchases available.

### Do Cipher Challenge or rush64 chess have ads?

rush64 chess shows ads; Cipher Challenge does not.

### Which is updated more often, Cipher Challenge or rush64 chess?

Cipher Challenge ships an update every 5 weeks, and rush64 chess every 2 days. Most recently, Cipher Challenge was updated on September 29, 2026 and rush64 chess on September 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.*