# ZenLock vs OneBreath

The clearest difference is in-app purchases: ZenLock at none against OneBreath's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OneBreath sells 1 in-app purchase, starting at $0.99 per month. ZenLock asks for nothing beyond the download.

ZenLock ships an update every 5 days, OneBreath every 6 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ZenLock | OneBreath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 days |
| Size | 3 MB | 17 MB |
| Requires iOS | **17.0** | 18.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kohei kishimoto](https://appshunter.io/developer/1832720515) | [Riki Suzuki](https://appshunter.io/developer/1833465762) |

## What reviewers say

### ZenLock

[App page](https://appshunter.io/ios/app/zenlock-app-blocking-app/id6749898128)

**Features:** macOS Compatibility

**In-app purchases:** none


### OneBreath

[App page](https://appshunter.io/ios/app/onebreath-screen-time-blocker/id6751109152)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Snobreath Premium | $0.99 | per month |


## Frequently asked questions

### Is ZenLock free?

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

### Is OneBreath free?

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

### Do ZenLock or OneBreath have ads?

Neither ZenLock nor OneBreath shows ads.

### Which is updated more often, ZenLock or OneBreath?

ZenLock ships an update every 5 days, and OneBreath every 6 days. Most recently, ZenLock was updated on October 7, 2026 and OneBreath on October 15, 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.*