What's a good alternative calendar app for Android that isn't Outlook or Google Calendar?
I don't like either. I used to use Sol Calendar but the app is out of the app store, and Sunrise Calendar, which got absorbed by Microsoft. I haven't found a good replacement and I'd love suggestions.
I really enjoy Proton calendar. They have a free tier with 3 calendars, but I use the lowest paid tier, and I absolutely love it. https://proton.me/pricing
It also shows the text of appointments in the 'month' overview which a lot of other apps don't do! It's the first app that could replace google calendar for me, for exactly that reason.
second for aCalendar+. been using the paid version for a few years now with a self hosted nextcloud instance. works great! works great with other calendars too (google, etc).
Business Calendar has been my favorite for a while now. I haven't tried Business Calendar 2 yet but someone else mentioned it in this thread and loves it.
Just to check, did you maybe mean the Simple suite of apps from Simple Mobile Tools?
They do have a calendar, but it's not the same one you linked, it's here. (Although just looking again and it's got some HORRIBLE recent reviews, so not sure what's up there!)
I've not used it, but I have used some of their other apps (including Gallery, which I still use) and they're pretty good.
I've been using simple calender pro. Been a pretty nice app, as it does the job I need it. Paired it with DavX5 and Nextcloud and it's just the same as Google calender.
I've used Business Calendar for a while. It has a ton of features. You have a lot of control in the layout and appearance and can connect to a variety of calendars and task apps.