Website and app blocker for Mac with lock modes to prevent disabling blocks
Fast, private, yours. A workspace ready for any AI.
Stage
Not given
Not given
Founded
Not given
Not given
Based in
Not given
US
Pricing model
Free trial
Freemium
Pricing
$29 for founding licence (90% claimed, 1 of 10 founding spots left), then $39 for next 25, then $59 regular price. One-time payment, free updates forever.
Koru Local: free. Koru Cloud: $9.99/month for 100 GB storage, always-on sync and backup.
Key features
Block websites across all browsers simultaneously
Block Mac apps from launching
Three lock modes: Off, Strict, and Hardcore
Recurring block scheduling by day and time
No account or sign-up required
Runs offline on your Mac
Streak and focus hour tracking
Support for subdomain blocking
Offline-first notes with local database storage
Peer-to-peer sync between devices with end-to-end encryption
AI agents as tabs using MCP (Model Context Protocol)
Local voice input that works offline
Terminal and coding agent tabs beside documents
Multiple profiles for work, school and personal use
Native apps for Windows, macOS and Linux
Markdown import and export with code blocks
What makes it different
Blocks across every browser and Mac app in one place, unlike browser extensions which only cover one browser
Hardcore lock mode cannot be disabled until timer ends, with only one emergency pass per week
Pay once, no subscription or account needed, works offline forever
Privacy-focused with no browsing data collected or sent from your Mac
Free and fully open source with code on GitHub under MPL-2.0 license
Works completely offline with no account required
Bring your own AI without vendor lock-in
Local voice input that never sends audio to the cloud
Peer-to-peer sync without a server holding your notes
Blocker
Koru