# ZenLock vs Lerf

ZenLock and Lerf are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 5 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | ZenLock | Lerf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (14 ratings)](https://appshunter.io/ios/app/lerf-screen-time-app-blocker/id6772977644/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | — | Free |
| Size | 3 MB | 20 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kohei kishimoto](https://appshunter.io/developer/1832720515) | [Grant Hergenroeder](https://appshunter.io/developer/1729593612) |

## What reviewers say

### ZenLock

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Lerf

[App page](https://appshunter.io/ios/app/lerf-screen-time-app-blocker/id6772977644)

This app helps you regain control of your screen time by blocking distracting applications during specific periods. It offers flexible blocking modes and ambient sounds to support relaxation, study, or sleep. The focus is on protecting your time and peace without intrusive tracking.

**Highlights:** Block distracting apps, Set custom session timers, Easy and Strict blocking modes, Ambient soundscapes, Designed for minimal interaction, Protect personal time

**In-app purchases:** none


## Frequently asked questions

### Is ZenLock free?

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

### Is Lerf free?

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

### Do ZenLock or Lerf have ads?

Neither ZenLock nor Lerf shows ads.

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

ZenLock ships an update every 5 days, and Lerf every 5 days. Most recently, ZenLock was updated on October 7, 2026 and Lerf on October 7, 2026.

---

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