# chessO — Memorize. Rebuild. Win.

> Memorize. Rebuild. Win. (iPhone/iPad app by Ali Alboainin.)

- Source: https://appshunter.io/ios/app/chesso/id6747690833 (this page in markdown: same URL + `.md`)
- Developer: [Ali Alboainin](https://appshunter.io/developer/1716145615)
- Category: Games, Productivity, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.5 · 11 MB
- Languages: American English
- Released: 2025-07-02
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/chesso/id6747690833/reviews.md

## What is chessO?

Memory, not luck.

chessO turns any spare minute into a laser-focused pattern workout. Set how many pieces you want to memorise and how long you want to glimpse the board. The app then auto-generates a fresh position and challenges you to rebuild it square-perfect.

CORE FEATURES
* Instant board generator – zero prep, unlimited variety
* Custom preview timer – pick 1-10 seconds for short- or long-term recall
* Pattern Lock drills – place pieces; instant feedback shows mistakes
* Streak and accuracy stats – watch blind spots disappear

WHY IT WORKS
Active recall + spaced repetition = durable memory. Medical students use it for anatomy; titled players use it for endgames. chessO brings both into a game-speed interface.

PRICING (Subscription Required After Trial)

chessO requires a subscription to access all content.
A 3-day free trial is available before billing begins.

    Monthly Plan – full access, cancel any time

    Lifetime Plan – one payment, over 65% cheaper long-term

WHO IT’S FOR
* Under 1200 Elo – learn basic mating nets
* 1200-1800 – patch middlegame pattern gaps
* 1800+ – sharpen instant piece-square recognition for blitz

Stop drilling puzzles you’ll never see again. Generate, memorise, rebuild, repeat.
Download chessO today and feel your board vision sharpen after the very first session.

EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
PRIVACY: alboainin.dev/projects/chessO/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $9.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $1.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2025-07-07

Improved keywords for the app store.

### 1.0 — 2025-07-02

No release notes.

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sixty Four Squares](https://appshunter.io/ios/app/sixty-four-squares/id1612844081) | 4.1 (9) | Free | Games |
| [Chess Problems Lite](https://appshunter.io/ios/app/chess-problems-lite/id369822228) | 4.3 (8) | Free | Games |
| [Chess Notation Lab Pro](https://appshunter.io/ios/app/chess-notation-lab-pro/id6483938642) | — | $9.99 | Games |
| [Chess By Post Premium](https://appshunter.io/ios/app/chess-by-post-premium/id510356580) | 4.8 (39) | $2.99 | Games |
| [Chess Notation Trainer Pro](https://appshunter.io/ios/app/chess-notation-trainer-pro/id6478752238) | — | $4.99 | Games |
| [Chess Move - Stockfish Engine](https://appshunter.io/ios/app/chess-move-stockfish-engine/id1661430804) | 4.3 (899) | Free | Games |

## More apps by Ali Alboainin

- [Algorithm Vault](https://appshunter.io/ios/app/algorithm-vault/id6475111074)
- [Jewelrify](https://appshunter.io/ios/app/jewelrify/id6745139663)

All apps by Ali Alboainin: https://appshunter.io/developer/1716145615

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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 2026-05-19.*