# Serendipity Chess vs Chess Openings Coach

The clearest difference is in-app purchases: Serendipity Chess at none against Chess Openings Coach's 2. Serendipity Chess also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chess Openings Coach sells 2 in-app purchases, starting at $4.99 per month. Serendipity Chess asks for nothing beyond the download.

Serendipity Chess ships an update every 3 weeks, Chess Openings Coach every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Serendipity Chess | Chess Openings Coach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 67 MB | 3 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mingo Lam](https://appshunter.io/developer/1808874025) | [Mitaanshu Agarwal](https://appshunter.io/developer/1896724075) |

## What reviewers say

### Serendipity Chess

[App page](https://appshunter.io/ios/app/serendipity-chess/id6744680166)

**In-app purchases:** none


### Chess Openings Coach

[App page](https://appshunter.io/ios/app/chess-openings-coach/id6773210563)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chess Openings Coach Pro Monthly | $4.99 | per month |
| Chess Openings Coach Pro Yearly | $24.90 | per year |


## Frequently asked questions

### Is Serendipity Chess free?

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

### Is Chess Openings Coach free?

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

### Do Serendipity Chess or Chess Openings Coach have ads?

Neither Serendipity Chess nor Chess Openings Coach shows ads.

### Which is updated more often, Serendipity Chess or Chess Openings Coach?

Serendipity Chess ships an update every 3 weeks, and Chess Openings Coach every 2 months. Most recently, Serendipity Chess was updated on November 5, 2026 and Chess Openings Coach on October 31, 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.*