# Inner Clock Master vs Stop the Timer

The clearest difference is in-app purchases: Inner Clock Master at none against Stop the Timer's 1. Inner Clock Master also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Stop the Timer sells 1 one-off in-app purchase. Inner Clock Master asks for nothing beyond the download.

Inner Clock Master ships an update every 4 days, Stop the Timer every 3 days. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Inner Clock Master | Stop the Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 19 MB | 57 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Ryoma Yanagimoto](https://appshunter.io/developer/1681944215) | [Noam Sela](https://appshunter.io/developer/1708589672) |

## What reviewers say

### Inner Clock Master

[App page](https://appshunter.io/ios/app/inner-clock-master/id6757979617)

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

**In-app purchases:** none


### Stop the Timer

[App page](https://appshunter.io/ios/app/stop-the-timer/id6778865340)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Inner Clock Master free?

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

### Is Stop the Timer free?

Stop the Timer is free to download, with in-app purchases available.

### Do Inner Clock Master or Stop the Timer have ads?

Stop the Timer shows ads; Inner Clock Master does not.

### Which is updated more often, Inner Clock Master or Stop the Timer?

Inner Clock Master ships an update every 4 days, and Stop the Timer every 3 days. Most recently, Inner Clock Master was updated on October 1, 2026 and Stop the Timer on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*