# Lerf vs oooLog

The clearest difference is in-app purchases: oooLog at none against Lerf's 5. Lerf's advantage is update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lerf sells 5 in-app purchases, starting at $3.99 per 7 days. oooLog asks for nothing beyond the download.

Lerf ships an update every 5 days, oooLog fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Lerf | oooLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (15 ratings)](https://appshunter.io/ios/app/lerf-screen-time-app-blocker/id6772977644/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free | — |
| Size | 14 MB | 5 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Grant Hergenroeder](https://appshunter.io/developer/1729593612) | [Openings Corp](https://appshunter.io/developer/1882812331) |

## What reviewers say

### 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 (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lerf Weekly | $3.99 | per 7 days |
| Lerf Monthly | $12.99 | per month |
| Lerf Monthly | $14.99 | per month |
| Lerf Annual | $39.99 | per year |
| Lerf Yearly | $79.99 | per year |


### oooLog

[App page](https://appshunter.io/ios/app/ooolog/id6791461781)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lerf free?

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

### Is oooLog free?

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

### Do Lerf or oooLog have ads?

Neither Lerf nor oooLog shows ads.

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

Lerf ships an update every 5 days, and oooLog fortnightly. Most recently, Lerf was updated on October 31, 2026 and oooLog on November 5, 2026.

---

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