Schedule meetings at the speed of thought
You waste 20 minutes daily
on calendar admin
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
Schedule in 3 Seconds
Drag to move. Resize by dragging edges. AI suggests perfect times. Reschedule your entire day in seconds. No emails.
- Drag meetings to reschedule instantly
- Resize events by dragging edges
- AI suggests optimal meeting times
- See your full day timeline at a glance
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.
Drag to resize meetings. AI suggests perfect times. Move your whole day around instantly.
Move meetings with natural language. 'Reschedule my 1:1 to tomorrow' and it's done.
Your calendar stays private. Encrypted tokens, no cloud sync nightmares, OAuth2 security.
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
Coming SoonSimple 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
Quick Questions
Is lifetime really forever?
Yes. One payment, lifetime access. All features, all updates, forever. No subscriptions, no surprises.
Why should I trust you?
Start completely free - no credit card required. 14-day money back guarantee. Join professionals already using Calendar0.
FAQs
Frequently Asked Questions
Find answers to common questions below. Still need help?
Email me at support@calendar0.app