HomeAppsProductivityTuta: Secure Private CalendarApps like Tuta: Secure Private Calendar Here are some great alternatives to Tuta: Secure Private Calendar by Tutao GmbH : Proton Calendar: Secure Events ★4.4 The Family Core ★4.6 Seecrypt Enterprise ★3.7 OurCal: Shared Calendar ★4.2 BotherMe&U Reminder Messenger ★3.9 EteSync - Secure Data Sync ★4.3 Calendar ★4.3 Business Calendar 2 Planner ★4.5 Goal Tracker: Illumtori ★4.8 Fossify Calendar ★4.6 Calendar 2025 ★4.2 2025 Calendar Business Planner ★4.8 Looping - Family calendar ★3.8 Calendar Widget Agenda Planner ★4.0 Calendar+ Schedule Planner ★3.6 Calendar+ Schedule Planner ★3.9