# Chess Puzzles vs Blunderzone

The clearest difference is iOS requirement: Blunderzone at 15.0 against Chess Puzzles's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Chess Puzzles sells 1 one-off in-app purchase and Blunderzone sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Chess Puzzles ships an update weekly, Blunderzone fortnightly. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Chess Puzzles | Blunderzone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (37 ratings)](https://appshunter.io/ios/app/chess-puzzles-offchess/id6744736661/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 91.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 183 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Avadhesh Bhunwaliya](https://appshunter.io/developer/1723608557) | [RANKA s.r.o.](https://appshunter.io/developer/352576574) |

## What reviewers say

### Chess Puzzles

[App page](https://appshunter.io/ios/app/chess-puzzles-offchess/id6744736661)

Enhance your chess tactics with over 100,000 offline puzzles. Train anytime, anywhere, regardless of internet access. Features adaptive difficulty, detailed stats, and various puzzle themes for all skill levels.

**Highlights:** 100K+ chess tactics and puzzles, Fully offline functionality, Adaptive difficulty adjustment, Detailed progress tracking, Multiple puzzle themes, Smart hint system, Customizable board themes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OffChess Unlimited | $3.99 | one-time |


### Blunderzone

[App page](https://appshunter.io/ios/app/blunderzone/id6763366751)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blunderzone Basic | $3.99 | per month |
| Blunderzone Premium | $6.99 | per month |


## Frequently asked questions

### Is Chess Puzzles free?

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

### Is Blunderzone free?

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

### Do Chess Puzzles or Blunderzone have ads?

Neither Chess Puzzles nor Blunderzone shows ads.

### Which is updated more often, Chess Puzzles or Blunderzone?

Chess Puzzles ships an update weekly, and Blunderzone fortnightly. Most recently, Chess Puzzles was updated on October 14, 2026 and Blunderzone on October 5, 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.*