Apps like Tuta: Secure Private Calendar

Here are some great alternatives to Tuta: Secure Private Calendar by Tutao GmbH :
Proton Calendar: Secure Events
Proton Calendar: Secure Events
★4.4
The Family Core
The Family Core
★4.7
Seecrypt Enterprise
Seecrypt Enterprise
★3.8
OurCal: Shared Calendar
OurCal: Shared Calendar
★4.3
BotherMe&U Reminder Messenger
BotherMe&U Reminder Messenger
★4.0
EteSync - Secure Data Sync
EteSync - Secure Data Sync
★4.3
White Calendar
White Calendar
★4.4
Business Calendar 2 Planner
Business Calendar 2 Planner
★4.6
xx messenger
xx messenger
★3.3
Fossify Calendar
Fossify Calendar
★4.4
2025 Calendar Business Planner
2025 Calendar Business Planner
★4.8
Looping - Family calendar
Looping - Family calendar
★3.8
Calendar - Schedule Planner
Calendar - Schedule Planner
★4.0
Calendar App - Handy Calendar
Calendar App - Handy Calendar
★4.0
Calendar+ Schedule Planner
Calendar+ Schedule Planner
★4.0
YATOO Calendar Widget
YATOO Calendar Widget
★3.9