Proton Calendar

Proton Calendar is a European calendar for organizing appointments, events, and schedules within the Proton ecosystem. It enables users to create calendars, plan events, manage invitations, and follow personal or professional agendas. It may suit individuals, freelancers, and teams looking for an alternative to Apple Calendar, Outlook Calendar, Zoho Calendar, Fantastical, TimeTree, Cron Calendar, Samsung Calendar, or Naver Calendar. Functional coverage should be confirmed before publication against collaboration, integration, and synchronization needs.