CalendarTask is a transparent desktop calendar for Windows from the DesktopCal team. Stick notes on dates, multi-device sync, WeChat reminders, shared calendars.
How CalendarTask compares with its closest alternatives
4 of the 5 closest alternatives have a free plan, as CalendarTask does. 2 of the 5 offer an API, as CalendarTask does. CalendarTask offers a mobile app and a desktop app. Of the alternatives, 3 offer a mobile app and 2 offer a desktop app. The alternatives were founded between 2017 and 2020. The alternatives with a known headquarters are in Switzerland and the United States.
Market position · Productivity
How CalendarTask compares in Productivity
CalendarTask has moderate opportunity and sits in the top third of 353 live Productivity tools on FalcoScan. Across Productivity, the average opportunity score is 63.2 and the average saturation score 47. FalcoScan rates CalendarTask's own market position as contested. 58 of the 353 operating Productivity tools have hot momentum, and FalcoScan has recorded 5 shutdowns in the category.
CalendarTask compared with its closest alternatives
The closest alternatives to CalendarTask that are still running, matched on the AI capabilities, uses and audience they share, are Morgen Calendar, Reclaim AI, Reclaim Scheduling, Cron AI, and Motion Planner AI.
Is CalendarTask still running?
Yes. As of 2 November 2026, FalcoScan lists CalendarTask as operating at xdiarys.com.
Does CalendarTask have an API?
Yes. CalendarTask offers an API.
Who is CalendarTask for?
CalendarTask is built for knowledge workers and professionals.
How do I sign in to CalendarTask?
Sign in on CalendarTask's own website, xdiarys.com. FalcoScan reviews CalendarTask but does not run its accounts, so logins, passwords and billing are handled by CalendarTask directly.