# OpenChess vs ChessLines

The clearest difference is update cadence: ChessLines at every 3 days against OpenChess's fortnightly. OpenChess's advantage is iOS requirement (12.0 vs 26.2). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. OpenChess sells 10 one-off in-app purchases and ChessLines sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for OpenChess against 5.0 for ChessLines. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

OpenChess ships an update fortnightly, ChessLines every 3 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | OpenChess | ChessLines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/chesslines-opening-trainer/id6760426577/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 57 MB | 73 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Bryant](https://appshunter.io/developer/1559648957) | [Maarten Lodewijk Slebos](https://appshunter.io/developer/1819324826) |

## What reviewers say

### OpenChess

[App page](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904)

Master chess openings by playing against a specialized AI. Explore specific defenses or move sequences, and gain insights into positional advantages and piece values. Improve your game from the very first moves.

**Highlights:** Learn specific chess openings, Play against AI focused on opening lines, Analyze positional advantages, Evaluate piece values and mobility, Understand pawn structure, Track defended and attacked pieces

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tarrasch Defense Opening | $0.99 | one-time |
| Trompowsky Attack Opening | $0.99 | one-time |
| Scandinavian Defense Opening | $0.99 | one-time |
| Three Knights Opening | $0.99 | one-time |
| Zukertort Opening | $0.99 | one-time |
| Van't Kruijs Opening | $0.99 | one-time |
| Vienna Game Opening | $0.99 | one-time |
| Ware Opening | $0.99 | one-time |
| Opening Explorer | $4.99 | one-time |
| OpenChess Premium | $19.99 | one-time |


### ChessLines

[App page](https://appshunter.io/ios/app/chesslines-opening-trainer/id6760426577)

Learn chess openings through interactive play and guided lessons. Practice moves with instant feedback or test your knowledge without hints. Build true understanding of chess strategies.

**Highlights:** Interactive move-by-move lessons, Instant feedback on mistakes, Hands-on learning by playing, Drill mode for memorization, Explanations for moves and strategy

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessLines Monthly | $5.99 | per month |
| ChessLines Yearly | $29.99 | per year |


## Frequently asked questions

### Is OpenChess free?

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

### Is ChessLines free?

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

### Which has better reviews, OpenChess or ChessLines?

OpenChess and ChessLines are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do OpenChess or ChessLines have ads?

Neither OpenChess nor ChessLines shows ads.

### Which is updated more often, OpenChess or ChessLines?

OpenChess ships an update fortnightly, and ChessLines every 3 days. Most recently, OpenChess was updated on October 15, 2026 and ChessLines on October 8, 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.*