# Blunderzone — Chess tactics from your games

> Chess tactics from your games (iPhone/iPad app by RANKA s.r.o..)

- Source: https://appshunter.io/ios/app/blunderzone/id6763366751 (this page in markdown: same URL + `.md`)
- Developer: [RANKA s.r.o.](https://appshunter.io/developer/352576574)
- Category: Games, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 180 MB
- Languages: American English
- Released: 2026-05-18
- Data updated: 2026-08-30
- User reviews in markdown: https://appshunter.io/ios/app/blunderzone/id6763366751/reviews.md

## What is Blunderzone?

Blunderzone helps chess players train the positions that matter most: the critical moments from their own games.

Connect a chess account, import your recent games, and let Blunderzone turn missed ideas into practical training. Instead of solving random puzzles, you revisit the patterns, openings, time controls, and habits that actually appear in your games.

Training modes:
- Game Tactics: review puzzles generated from mistakes in your own games.
- Quick Tactics: solve fast 10-puzzle sessions for speed and pattern recognition.
- Memory Training: use spaced repetition to keep important tactical patterns fresh.
- Game Review: inspect analyzed games and the moments behind your training.

Blunderzone is built for players who want deliberate chess improvement, not another generic puzzle feed. Your mistakes become a training plan, and the app keeps bringing them back until the patterns are easier to see over the board.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Blunderzone Premium | $6.99 | per month |
| Blunderzone Basic | $3.99 | per month |



## Version history (last 4 releases)

### 0.11.13 — 2026-08-27

Added recent puzzle history and AI explanations for game tactics. Improved training layout and reliability.

### 0.9.0 — 2026-08-08

Improved game analysis and tactics from your games, including clearer ratings and ordering, plus fixes and refinements.

### 0.8.1 — 2026-05-27

Adds Basic and Premium subscriptions in the native mobile app, with purchase restore and membership refresh.

### 0.7.3 — 2026-05-11

No release notes.

## More apps by RANKA s.r.o.

- [Šibenice - Obce](https://appshunter.io/ios/app/sibenice-obce/id601444021)
- [Little Golem](https://appshunter.io/ios/app/little-golem/id1193062465)
- [Poems - memorize poetry, texts](https://appshunter.io/ios/app/poems-memorize-poetry-texts/id1509333489)
- [Joga s Alenkou](https://appshunter.io/ios/app/joga-s-alenkou/id1563934095)
- [geo-crossing](https://appshunter.io/ios/app/geo-crossing/id6754650113)

All apps by RANKA s.r.o.: https://appshunter.io/developer/352576574

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*