# 7Sec Chess vs Chess Lab

The clearest difference is in-app purchases: 7Sec Chess at none against Chess Lab's 1. 7Sec Chess also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Chess Lab sells 1 one-off in-app purchase. 7Sec Chess asks for nothing beyond the download.

7Sec Chess ships an update weekly, Chess Lab every 5 days. The most recent releases landed on October 15, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 7Sec Chess | Chess Lab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 120 MB | 61 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Salih Eksioglu](https://appshunter.io/developer/1633491617) | [koji ozono](https://appshunter.io/developer/1826482515) |

## What reviewers say

### 7Sec Chess

[App page](https://appshunter.io/ios/app/7sec-chess/id6754979752)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Lab

[App page](https://appshunter.io/ios/app/chess-lab-arasan-ai-engine/id6757245101)

Engage in chess matches with a powerful AI engine and a user-friendly interface. Offers various game modes including online multiplayer, local play, and AI training. Analyze your games with detailed insights and replay past matches.

**Highlights:** Arasan AI engine for analysis, Online multiplayer and web invite play, Offline CPU battles with adjustable strength, Real-time evaluation and game replays, Interactive history and PGN import, 2.5D and 2D board views, Assistive move highlights

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chess Lab Pro | $1.99 | one-time |


## Frequently asked questions

### Is 7Sec Chess free?

7Sec Chess is free to download, with no in-app purchases.

### Is Chess Lab free?

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

### Do 7Sec Chess or Chess Lab have ads?

Both 7Sec Chess and Chess Lab show ads.

### Which is updated more often, 7Sec Chess or Chess Lab?

7Sec Chess ships an update weekly, and Chess Lab every 5 days. Most recently, 7Sec Chess was updated on October 15, 2026 and Chess Lab on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*