Proton Calendar

Singlebox + Proton Calendar

Manage multiple Proton Calendar accounts and all of your other web service, email and messaging accounts in one place with Singlebox.

Available for macOS, Windows and Linux.

Singlebox is a desktop app for Mac and PC to manage multiple Proton Calendar accounts and all of your other web service, email and messaging accounts in one place.

  1. Install and launch Singlebox app.
  2. Click + button to add new service.
  3. Search for "Proton Calendar".
  4. Click "Add" to add Proton Calendar account.