Leif

Download the Leif app

For Macs on macOS 13 Ventura or later, Apple silicon and Intel. Signed and notarized by Apple.

Download Leif for Mac

Setting up

1. Open the download and drag Leif into Applications.
2. Open Leif. A short checklist walks you through allowing website blocking and choosing what to block.
3. Plug in your key. If your Mac asks "Allow accessory to connect?", click Allow. That first plug-in pairs the key and starts your first session.

Key not doing anything?

Unplug it, plug it back in and click Allow when your Mac asks. Unlock your Mac first. If it still does nothing, plug it straight into the Mac rather than a hub. The "Key not working?" link in Leif's menu has the same steps.