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
★4.5
The Family Core
The Family Core
★4.6
Seecrypt Enterprise
Seecrypt Enterprise
★3.8
OurCal: Shared Calendar
OurCal: Shared Calendar
★4.2
Calendar Planner - Agenda App
Calendar Planner - Agenda App
★4.5
BotherMe&U Reminder Messenger
BotherMe&U Reminder Messenger
★3.9
Calendar
Calendar
★4.3
Business Calendar 2 Planner
Business Calendar 2 Planner
★4.5
White Calendar
White Calendar
★4.5
Goal Tracker: Illumtori
Goal Tracker: Illumtori
★4.8
Fossify Calendar
Fossify Calendar
★4.5
Calendar 2025
Calendar 2025
★4.1
2025 Calendar Business Planner
2025 Calendar Business Planner
★4.8
Looping - Family calendar
Looping - Family calendar
★3.8
Calendar Widget Agenda Planner
Calendar Widget Agenda Planner
★4.0
Simple Calendar: Daily Planner
Simple Calendar: Daily Planner
★4.6