Hi everybody !

While I really like the simple and sleek google calendar web GUI and functionalities, I’m more and more concerned about my data and privacy. Even if I have nothing to hide, I don’t agree anymore to sell freely and consciously my data to any GAFAM.

Has anyone any alternative to google calendar?

• Free and if possible, open source? It can have some discret sponsors/ads. As long as it isn’t to intrusive.
• Todoist integration
• Sync between devices
• GUI doesn’t have to be PERFECT, but a bare minimum for my candy eyes !
• Can be API, Web… doesn’t matter as long as it syncs between devices (android, mac, windows, linux)

I already searched through the web, but couldn’t find any conclusive alternative, maybe someone knows some hidden gem :)

Thank you !