# 529 Garage Campus vs Chess Clock Duo

The clearest difference is in-app purchases: 529 Garage Campus at none against Chess Clock Duo's 3. 529 Garage Campus also leads on iOS requirement (14.7 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Chess Clock Duo sells 3 in-app purchases, starting at $0.99 per month. 529 Garage Campus asks for nothing beyond the download.

529 Garage Campus ships an update every 2 months, Chess Clock Duo every 3 months. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 529 Garage Campus | Chess Clock Duo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 78 MB | 11 MB |
| Requires iOS | **14.7** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Project 529, Inc.](https://appshunter.io/developer/849303557) | [Vincent Grellert](https://appshunter.io/developer/1886984960) |

## What reviewers say

### 529 Garage Campus

[App page](https://appshunter.io/ios/app/529-garage-campus/id6449553871)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Clock Duo

[App page](https://appshunter.io/ios/app/chess-clock-duo-blitz-timer/id6792531599)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Yearly | $8.99 | per year |
| Chess Clock Pro | $24.99 | one-time |


## Frequently asked questions

### Is 529 Garage Campus free?

529 Garage Campus is free to download, with no in-app purchases.

### Is Chess Clock Duo free?

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

### Do 529 Garage Campus or Chess Clock Duo have ads?

Neither 529 Garage Campus nor Chess Clock Duo shows ads.

### Which is updated more often, 529 Garage Campus or Chess Clock Duo?

529 Garage Campus ships an update every 2 months, and Chess Clock Duo every 3 months. Most recently, 529 Garage Campus was updated on November 7, 2026 and Chess Clock Duo on November 10, 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.*