Schedule meetings at the speed of thought
AI Calendar App That Saves 20 Minutes Daily
Stop double-booking meetings. Stop wasting time.
AI schedules from your menubar in 3 seconds.
macOS
Windows100+ users are saving 20 minutes daily
This is your day now
"Are you free Thursday at 2?"
You open three browser tabs to check. Takes 4 minutes. You forget the bug fix you just figured out.
"Can we move our 1:1?"
You search for the meeting. Check everyone's calendar. Send three emails. Your morning productivity is shot.
"Who's joining from engineering?"
You scramble for email addresses. Check Slack. Search the directory. Your boss is waiting.
You've been in meetings all day
Your kids are eating dinner. You're opening your laptop.
Every. Single. Day.
While your calendar owns more of your life.
Tomorrow? Same thing.
Unless you fix this now.
Features
Your calendar problems, solved
Automatic conflict detection. Smart scheduling. Protected focus time. Save 20 minutes every single day.
AI That Knows Everyone
Type 'lunch with Sarah tomorrow'. Calendar0 finds Sarah's email. Checks everyone's availability. Sends the invite. Done.
- Searches Google Contacts, Workspace, and Microsoft directory
- Checks calendar conflicts for every single attendee
- Works with partial names (just 'Sarah' finds 'Sarah Johnson')
- Prevents double-booking across your entire team
Read All Your Calendars
Personal calendar. Work calendar. Shared calendars. See them all at once. One view. Zero switching.
- Syncs Google and Microsoft calendars in one view
- Instant availability check across all accounts
- No switching between personal and work accounts
- AI knows which calendar to use for which meeting
Bulk Operations in Seconds
Add buffers to back-to-back meetings instantly. Select multiple events and modify them all at once. Reschedule your entire day in seconds.
- Bulk add buffers between meetings with one action
- Select and modify multiple events simultaneously
- Drag to reschedule, resize by dragging edges
- Prevent burnout with automatic breathing room
Type 'lunch with Sarah' and C0 finds her email automatically. Checks conflicts across ALL attendees.
Personal, work, shared calendars. C0 sees them all at once. No more switching accounts.
Add buffers to back-to-back meetings instantly. Select and modify multiple events at once.
Move meetings with natural language. 'Reschedule my 1:1 to tomorrow' and it's done.
Tokens encrypted on your computer. We don't save anything on our servers. AI only knows what you share.
Never touch your mouse. Global hotkeys, keyboard shortcuts. Your hands stay on the keyboard.
5-minute warnings that actually work. Join video calls with one click. Stop being late.
Lives in your menubar next to your clock. Your full schedule appears instantly. No browser needed.
Works with your favorite calendars
Google Calendar
Microsoft Outlook
Apple Calendar
Simple Pricing
One Price, Forever Yours
Pay once, own it forever. No subscriptions, no surprises.
Starter
Start with full calendar features
Lifetime Access
One payment, forever yours
Monthly
Pay as you go
FAQs
Frequently Asked Questions
Find answers to common questions below. Still need help?
Email me at support@calendar0.app