# Clo vs Watch Brain

The clearest difference is iOS requirement: Clo at 17.6 against Watch Brain's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Clo sells 1 one-off in-app purchase and Watch Brain sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Clo ships an update every 5 weeks, Watch Brain every 2 months. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Clo | Watch Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 4 MB | 7 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Massimo Russo](https://appshunter.io/developer/1856816817) | [Justin Pruskowski](https://appshunter.io/developer/466301805) |

## What reviewers say

### Clo

[App page](https://appshunter.io/ios/app/clo-e-minimal-clock/id6759663122)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clo-E Premium | $2.99 | one-time |


### Watch Brain

[App page](https://appshunter.io/ios/app/watch-brain-watch-identifier/id6780022899)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Collector Monthly | $4.99 | per month |
| Collector Annual | $29.99 | per year |
| Watch Brain Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Clo free?

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

### Is Watch Brain free?

Watch Brain is free to download, with in-app purchases available.

### Do Clo or Watch Brain have ads?

Neither Clo nor Watch Brain shows ads.

### Which is updated more often, Clo or Watch Brain?

Clo ships an update every 5 weeks, and Watch Brain every 2 months. Most recently, Clo was updated on October 24, 2026 and Watch Brain on October 14, 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.*