Calendar sync · booking links
BusyWait keeps every calendar you connect in step — Google, Outlook, iCloud — so a booking in one blocks the time in all of them. By default what crosses over is a start, an end and the word busy. Titles, guests and notes stay where you put them until you decide otherwise.
Free for two calendars, in sync both ways · about two minutes to set up
Work
Northwind
Outlook
Personal
iCloud
Works with
Google Calendar
Personal and Workspace
Outlook
Microsoft 365 and Outlook.com
iCloud
Apple Calendar
Reliability
A sync tool earns its keep by being boring. When something goes wrong, BusyWait tells you instead of guessing, and what it commits to is written down instead of implied.
How it works
Sign in to Google, Outlook or iCloud and tick the calendars you want involved. No browser extension and nothing to install. Some work accounts need an administrator to approve new apps; most do not. Two minutes, most of it spent deciding.
Mirror both ways, or push in one direction only. Busy-only is the default and stays the default. Where you want more — titles between two calendars that are both yours, or a client being able to tell a movable call from focus time — you switch it on for that one sync.
Book anything in any calendar and the others block the time. Share one link and let people take a slot that every calendar selected for the link agrees is free. That is the whole product.
Busy by default
Privacy here is not a setting. It is the shape of the thing: by default a mirrored event has three fields, and none of them is the title. Adding to that is a decision you make per sync, never one we make for you.
In the calendar it was made in
What crosses by default
Three fields, unless you have told this particular sync to carry more. Nothing on the left reaches the other calendars because you have not asked it to — not because it is waiting behind a setting.
Booking links
Send a link, let someone pick a time. Before a slot is offered it is checked against the calendars selected for that link: every calendar you have connected, unless you deselect one. They see the times that are free. They do not see what is in the way.
busywait.ai/you/30min
Thirty minutes
Thursday 12 March · Europe/London
Everything included
There is no enterprise tier hiding the good bits, and no roadmap of assistants waiting to be bolted on. This is the list.
Two-way sync
Connect two calendars free, or as many as you like on Pro, across as many accounts as you like. Book something in one and the others block the time out. The free plan keeps its calendars in sync both ways, as the paid ones do.
Whatever you already use
Personal Gmail and a Workspace account. Microsoft 365 and an old Outlook.com address. Apple Calendar. Mix them freely — BusyWait does not care whose calendar it is.
Buffers, notice and caps
Padding either side of a meeting. A minimum notice period so nobody books you in twenty minutes. A daily cap so Thursday does not become eight calls. Set once, applied everywhere.
Built for people with too many accounts
Consultants, contractors and fractional operators end up in four org calendars they cannot merge. Mirror each one into your own and let every client see an honest picture of your availability, and nothing about each other.
Quick, and honest about it
Changes usually show up in your other calendars within minutes. That depends on each calendar provider passing the change on, so it is a typical figure and not a guarantee. The one loop that spins here is ours, not yours.
What we deliberately do not do
BusyWait is plumbing, and it has no opinions about your meetings. The full list of what that rules out is below.
On principle
A list like this is only worth anything if it costs something to keep. These are features we have decided against, not ones we have not got round to.
There is no model of any kind in BusyWait, and there never will be. Where AKdev uses a model.
The last item is a studio position rather than a BusyWait one — AKdev writes down where a model earns its place.
FAQ
What it syncs, what it copies and what it costs.
busy-wait /ˈbɪzi weɪt/ n.
A loop that checks, and checks, and checks again, until something finally changes.
Free for two calendars
The free plan keeps two calendars in sync both ways and is not time-limited. Connect two and see if it goes quiet. Pro and Team each start with a seven-day free trial.