I have multiple calendars with different providers and of course my work calendar. I really love the schedule view in Google Calendar but I would also love not to be sending all my data to Google just to get one UI feature.

Calendar.com is US-based and therefore not much better than Google for privacy, they are also more focused on groups than individuals. Calendar.online seems to have the schedule view, is based in Germany and says it is not interested in collecting and selling customer data but sadly it doesn’t sync with Google Calendar.

Tutanota has an agenda view but again doesn’t allow you to sync calendars due to the way it secures information.

Proton Calendar has the ability to sync with other calendars but it’s agenda view only applies to a single day which isn’t great but probably will get the job done, there is a feature request for a schedule view but nothing like it is currently in the UI. I’ve downloaded the Proton Calendar app for Android and it does seem to be a reasonable offline capable way of viewing multiple calendars and keeping them in sync.

I haven’t been able to find the perfect solution to my problem so far but Proton seems to be the best option I have currently and I would love it if that feature request is moved forward. The calendar feature was good enough to upgrade my plan to cover its functionality so I guess it really is good enough. I’d be interested in hearing about alternatives though.