Desktop app that puts your calendar in the system tray.
Click once for instant access.
Type 'lunch with sarah tomorrow' to schedule meetings.
AI finds contacts from Google Workspace, checks availability, sends invites.
Calendar0 is a desktop AI-powered calendar that lives in your system tray and lets you schedule meetings by typing natural language.
- for
- Knowledge workers and teams who want fast, keyboard-first meeting scheduling.
- pricing
- freemium
works withGoogle CalendarMicrosoft OutlookApple Calendar
Key features
6 features of Calendar0
- Natural-language scheduling — Type commands like “lunch with Sarah tomorrow” and Calendar0 finds contacts, checks availability and sends invites.
- Unified calendar view — Syncs Google, Microsoft and Apple calendars into a single view with instant availability checks.
- Bulk operations — Add buffers, reschedule or edit multiple events at once with drag-and-drop actions.
- Keyboard-first interface — Global hotkeys and shortcuts let you manage your schedule without touching the mouse.
- Private & secure — Tokens are encrypted locally; no calendar data is stored on Calendar0 servers.
- Smart notifications — 5-minute reminders and one-click video-call join to keep you on time.
Use cases
- Quickly book a meeting with a colleague by typing a single command.
- Add 10-minute buffers between back-to-back meetings across all calendars.
- Reschedule an entire day’s agenda in seconds when priorities shift.
Calendar0 pricing
- StarterFreeConnect unlimited calendar providers · Drag, resize, edit, RSVP · Join video meetings instantly · 3 free AI chat commands
- Lifetime Access$49 onceUnlimited AI chat commands · All future AI improvements · 14-day money-back guarantee
- Monthly$4.99/month/monthUnlimited AI chat commands · All future AI improvements · Cancel anytime
Calendar0 FAQ
Can I use this at my company?+
Yes, Calendar0 works with corporate Google Workspace, Microsoft 365 and Apple accounts.
How fast can I actually set this up?+
After downloading, you connect your calendars and can start typing commands within seconds.
Does this work with my work calendar?+
Calendar0 syncs with Google, Microsoft Outlook and Apple calendars, covering most work environments.
Will people know I’m using this?+
The app runs locally; only the participants you invite see the meeting, and no data is stored on Calendar0 servers.
Is this actually secure?+
Tokens are encrypted on your computer and never saved to external servers.
Summarized by DevHunt from calendar0.app · Oct 7, 2026. Details may change; check the official site.
