HomeAppsProductivityProton Calendar: Secure EventsApps like Proton Calendar: Secure Events Here are some great alternatives to Proton Calendar: Secure Events by Proton AG : Calendar: Daily Agenda Planner ★4.7 Calendar 2024 ★4.3 Simple Calendar Pro ★4.5 Simple Calendar ★4.6 Calendar 2024 - Planners ★4.4 Calendar ★4.5 Calendar Planner - Agenda App ★4.7 Calendar ★4.3 Tuta Calendar & Planner App ★4.5 Calendar ★4.5 Calendar - Simple Planner ★3.3 Simple Calendar: Daily Planner ★4.7 Calendar Launcher ★4.5 Calendar ★4.2 Calendar Planner: Schedule App ★4.0 Calendar Planner ★4.2