# Circuit Clock vs workout timer

The clearest difference is in-app purchases: Circuit Clock at none against workout timer's 3. Circuit Clock also leads on update cadence (every 10 days vs every 6 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. workout timer sells 3 in-app purchases, starting at $2.99 per 7 days. Circuit Clock asks for nothing beyond the download.

Circuit Clock ships an update every 10 days, workout timer every 6 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Circuit Clock | workout timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Size | 5 MB | 12 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stephen Ludin](https://appshunter.io/developer/699789331) | [Maksym Mashkov](https://appshunter.io/developer/1335080718) |

## What reviewers say

### Circuit Clock

[App page](https://appshunter.io/ios/app/circuit-clock/id6448733183)

**Features:** macOS Compatibility

**In-app purchases:** none


### workout timer

[App page](https://appshunter.io/ios/app/workout-timer-hiit-assistant/id6741708343)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $2.99 | per 7 days |
| Monthly Pro | $6.99 | per month |
| Yearly Pro | $29.99 | per year |


## Frequently asked questions

### Is Circuit Clock free?

Circuit Clock is free to download, with no in-app purchases.

### Is workout timer free?

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

### Do Circuit Clock or workout timer have ads?

Neither Circuit Clock nor workout timer shows ads.

### Which is updated more often, Circuit Clock or workout timer?

Circuit Clock ships an update every 10 days, and workout timer every 6 weeks. Most recently, Circuit Clock was updated on October 25, 2026 and workout timer on October 25, 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.*