Calendar0
Merges your calendars, books meetings by chat, and takes notes on calls you record.
Calendar0 puts your Google, Outlook and iCloud calendars in one week view and lets you ask it things like "am I free Thursday at 2?" or "move my 1:1 with Priya to Thursday afternoon" instead of checking each app by hand. A quick-add line like "Lunch with Marco tomorrow at 1" fills in a full event, booking links let people pick a free slot without an email thread, and the desktop app records calls and writes up notes afterward. The free plan includes 100 assistant chats, and booking links and quick add stay free on every plan.

What holds up
- +One typed question checks every connected calendar instead of you checking each by hand
- +Quick add turns "Lunch with Marco tomorrow at 1" into a full event with one line
- +Booking links and quick add are free on every plan, not just paid tiers
Mind the limits
- −Free plan caps the assistant at 100 chats a month — heavy schedulers will hit that limit
- −Call recording and notes need the desktop app — browser-only users don't get them
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