Lerf: Screen Time App Blocker
Grant Hergenroeder Productivity iPhoneiPadiPod touch
Lerf: Screen Time App Blocker is a free Productivity app for iPhone and iPad by Grant Hergenroeder. Rated 5.0/5 from 15 ratings. Requires iOS 17.0.
- Rating
- 5.0
- 15 ratings
- Price
- Free
- on the App Store
- Size
- 14 MB
- Age 4+
- Updated
- Oct 21
- 2026 · v4.1.2
Screenshots
About Lerf: Screen Time App Blocker
10 minutes on your phone turned into 2 hours. Again. Do Not Disturb stops notifications. Lerf turns your phone back into a tool that supports your goals. HOW IT WORKS Choose apps, set a schedule (optional) or tap start and distracting apps lock down. No streaks. No account. Nothing to check. Flexible Mode lets you end blocking early. Strict Mode keeps your apps blocked until the timer (or schedule) ends. FOR Focus: work or study without negotiating with your phone. Sleep: less scrolling before bed. Family time: set boundaries around distracting apps so family time means actually being together. PRICING Lerf is free to download. Full access is $12.99 a month or $39.99 a year after a 7-day free trial. Cancel anytime in Settings. WHY LERF Our smartphones are our greatest tools and our worst distractions. Lerf's mission is to turn smartphones back into tools, helping people take back control of their time, attention, and technology. PRIVACY Lerf uses Apple's Screen Time framework. Your app choices and usage stay on your phone. Lerf never sees them, and there's no account to create. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lerfapp.com/privacy
Ratings & reviews
5.0
15 ratings
What’s new
Version 4.1.2 · Updated October 21, 2026
Lerf 4.1.2
App privacy
The developer, Grant Hergenroeder, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Identifiers: User ID
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Other Diagnostic Data
Used for: Analytics, App Functionality
Alternatives to Lerf: Screen Time App Blocker
Looking for apps like Lerf: Screen Time App Blocker? Here are 6 similar apps on the App Store. The highest rated is Refocus: App Blocker & Lock (4.8/5), and all 6 are free to download.
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Detach: App Blocker & Focus
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67: Strict Screen Time Blocker
4.4
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Focus Lock - Screen Time Limit
4.3
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DetoxLock: Extreme App Blocker
4.7
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Refocus: App Blocker & Lock
4.8
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Roots: Screen Time Control
4.7
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Lerf: Screen Time App Blocker | 5.0 / 5 (15 ratings) | Free | October 21, 2026 | |
| Detach: App Blocker & Focus | 4.1 / 5 (10) | Free | Oct 23, 2026 | Compare |
| 67: Strict Screen Time Blocker | 4.4 / 5 (73) | Free | Oct 14, 2026 | Compare |
| Focus Lock - Screen Time Limit | 4.3 / 5 (294) | Free | Oct 20, 2026 | Compare |
| DetoxLock: Extreme App Blocker | 4.7 / 5 (506) | Free | Oct 27, 2026 | Compare |
| Refocus: App Blocker & Lock | 4.8 / 5 (11,755) | Free | Oct 25, 2026 | Compare |
| Roots: Screen Time Control | 4.7 / 5 (3,133) | Free | Oct 7, 2026 | Compare |