# Swatch Time vs Go Clock Duo

The clearest difference is in-app purchases: Swatch Time at none against Go Clock Duo's 3. Swatch Time also leads on update cadence (every 5 days vs every 2 months) and iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Go Clock Duo sells 3 in-app purchases, starting at $0.99 per month. Swatch Time asks for nothing beyond the download.

Swatch Time ships an update every 5 days, Go Clock Duo every 2 months. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Swatch Time | Go Clock Duo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Size | 54 MB | 14 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nicolas Fillion](https://appshunter.io/developer/1886264854) | [Vincent Grellert](https://appshunter.io/developer/1886984960) |

## What reviewers say

### Swatch Time

[App page](https://appshunter.io/ios/app/swatch-time/id6760792721)

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

**In-app purchases:** none


### Go Clock Duo

[App page](https://appshunter.io/ios/app/go-clock-duo-byoyomi-timer/id6795444077)

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

**In-app purchases (3)**

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


## Frequently asked questions

### Is Swatch Time free?

Swatch Time is free to download, with no in-app purchases.

### Is Go Clock Duo free?

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

### Do Swatch Time or Go Clock Duo have ads?

Neither Swatch Time nor Go Clock Duo shows ads.

### Which is updated more often, Swatch Time or Go Clock Duo?

Swatch Time ships an update every 5 days, and Go Clock Duo every 2 months. Most recently, Swatch Time was updated on October 31, 2026 and Go 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.*