Skybox on your desktop.
The same app you already know, in its own window, with notifications, a tray icon, attachments that open straight in the right app, and mailto: links that open Skybox instead of something else.
Linux
Your systemAppImage · x86-64, updates itself
- Debian / Ubuntu · .deb, x86-64
The AppImage keeps itself up to date. A .deb belongs to your package manager, so that one you update yourself.
macOS
Apple Silicon · M1 and newer
- Intel · Macs from before M1
macOS 12 or newer. Signed and notarised by Apple, so it opens without a warning.
Windows
Installer · 64-bit and ARM
- Portable · no installation
Windows 10 or newer. Not yet code-signed, so SmartScreen will ask: choose “More info”, then “Run anyway”.
Skybox keeps itself up to date: it checks for a new version in the background and installs it the next time you quit.