# DeltaChess vs 7Sec Chess

The clearest difference is price: 7Sec Chess at Free against DeltaChess's $0.99. 7Sec Chess also leads on in-app purchases (none vs 3). DeltaChess's advantage is ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

7Sec Chess is free to download; DeltaChess costs $0.99 up front. DeltaChess sells 3 one-off in-app purchases. 7Sec Chess asks for nothing beyond the download.

DeltaChess ships an update every 4 days, 7Sec Chess weekly. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DeltaChess | 7Sec Chess |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Size | 156 MB | 120 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sezgin Serin](https://appshunter.io/developer/1793997554) | [Salih Eksioglu](https://appshunter.io/developer/1633491617) |

## What reviewers say

### DeltaChess

[App page](https://appshunter.io/ios/app/deltachess/id6753863395)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer Tip – Small | $0.99 | one-time |
| Developer Tip – Medium | $9.99 | one-time |
| Developer Tip – Large | $99.99 | one-time |


### 7Sec Chess

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DeltaChess free?

DeltaChess costs $0.99, and also offers in-app purchases.

### Is 7Sec Chess free?

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

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

7Sec Chess shows ads; DeltaChess does not.

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

DeltaChess ships an update every 4 days, and 7Sec Chess weekly. Most recently, DeltaChess was updated on October 9, 2026 and 7Sec Chess on October 15, 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.*