: Requires macOS 11.5 (Big Sur) or later for current versions.

: Unlike some rivals, it integrates macOS Reminders directly alongside calendar events, allowing you to manage "to-dos" from the same interface.

: Typically available as a one-time purchase on the Mac App Store or via MacUpdate .

: Supports all major calendar services, including iCloud, Google, Exchange, and Outlook, ensuring data is consistent across Mac, iPhone, iPad, and Apple Watch. Technical Specifications Developer : Vincent Miethe (n.spektor) .