Lock In! - Website Blocker
Focus Timer & Deep Work Mode
Only for Mac
Free · In‑App Purchases
Mac
Block distracting websites and apps during timed focus sessions. Works in every browser — Chrome, Safari, Firefox. Strict mode, Pomodoro breaks, daily goals.
Lock In blocks the websites and apps that break your concentration — and unlike browser extensions, it works everywhere.
Most blockers are a Chrome extension you can disable in two clicks, or they only cover one browser. Lock In blocks at the network level, so the same session covers Safari, Chrome, Firefox, Arc, Brave, and any browser you install tomorrow. Opening a different browser doesn't get you around it.
Start a session from your menu bar, and the timer counts down right there in the bar. When it ends, an alarm rings until you dismiss it.
FEATURES
• System-Wide Website Blocking — Works in every browser at once, not just one. No extension to install, nothing to disable mid-session.
• 321 Sites, Pre-Sorted — Ready-made blocklists for Social, Video, News, Shopping, and Adult content. Toggle whole categories per session, or add your own domains.
• App Blocking — Open a blocked app mid-session and Lock In stops you with a full-screen reminder.
• Strict Mode — Locks the session so you cannot stop it early. For the times you do not trust yourself.
• Pomodoro Breaks — Automatic work and break intervals, with lengths you choose.
• Live Menu Bar Timer — See the countdown at a glance without opening anything.
• Daily Goals and Streaks — Set a daily focus target, track it with a weekly chart and full session history.
• Custom Sessions — Build your own presets with their own blocklists, durations, and rules.
• Global Hotkeys — Start, stop, or take a break from anywhere with a keyboard shortcut.
• Sessions Survive Restarts — Quitting the app or rebooting will not end a running session.
• Privacy First — Everything runs locally on your Mac. No account, no analytics, no telemetry, and your browsing is never logged or sent anywhere.
PERFECT FOR
• Deep work blocks where one tab derails the whole afternoon
• Students studying for exams
• Writers, developers, and designers protecting long stretches of focus
• Anyone who has closed a distracting site and reopened it thirty seconds later
FREE AND PRO
Blocking is free — every browser, every app, no account. Lock In! Pro adds Strict Mode, unlimited session length, category and keyword blocking, and unlimited presets. Choose monthly, yearly, or a one-time lifetime purchase.
Requires macOS 14.0 (Sonoma) or later. Website blocking uses a macOS system extension, which you approve once during setup.
Privacy Policy: https://eduardbruch.com/lockin/privacy
Terms of Service: https://eduardbruch.com/lockin/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Eduard Bruch, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Eduard Bruch
- Size
- 4.4 MB
- Category
- Productivity
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 32 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lock In! Pro — Monthly $3.99
- Lock In! Pro — Lifetime $39.99
- Copyright
- © 2026 Eduard Bruch