Been having such idea but not capable to implement yet. Trying out to see if it is exactly what I want.
UPDATE:
The sharing is limited to one group one calendar. If I want to share my course calendar with both my classmates and my family, I can only manually create it twice.
Almost calendar apps on the market are for businessmen and public events. This one is for you and your friends and family.
I think is an alternative solution for group sharing, which focuses on offline events and small parties.
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