OnlyBusy
OnlyBusy vs Calendly
Last updated 3 October 2026
Calendly collects a meeting through a link you send. OnlyBusy writes a private Busy event onto the Google or Microsoft calendar a colleague already has open. Keep Calendly when people book themselves. Add OnlyBusy when they schedule you from inside their own tenant.
At a glance
| Comparison | Other approach | OnlyBusy |
|---|---|---|
| What it is for | A booking page where someone picks a slot and confirms. | A private Busy event on each calendar you connect. |
| Scheduling Assistant | A Calendly link is not an event on their calendar, so the assistant does not see it. | The Busy event is on their calendar, so the assistant treats the hour as taken. |
| Event details | The booking page shows the event type you published. | The other calendar gets the label you set. Title, guests, notes, and location stay on the source calendar. |
| How you connect | You share a link. Calendly can also check calendars you connect for conflicts. | Personal sign-in for Google Calendar and Microsoft 365. No tenant-wide admin consent. |
What they are for
Calendly is a booking page. Someone opens the link, sees the slots you offered, and picks one. That works when you made the link the way meetings get on the calendar.
As of 3 October 2026, Calendly's help says the Free plan includes one event type and one calendar connection. Paid plans add more event types, more calendars to check for conflicts, and team routing.
What OnlyBusy writes
OnlyBusy writes a real event on each calendar you connect. The event is marked Busy and private. It carries the label you choose for that calendar.
Your own calendar still shows the real title. That title is not stored and is not copied onto another calendar. Guests, notes, and location stay behind.
Who should stay with them
Stay with Calendly when the other person will open a link and book. Sales, recruiting, and office hours often work that way.
A booking page can check the calendars you have connected before it offers a slot. It still does not place a Busy event on a client's separate Microsoft 365 tenant.
Who should add OnlyBusy
Add OnlyBusy when colleagues schedule you from Outlook Scheduling Assistant or Google Find a time and never open a link.
You can use both. Calendly collects the meeting. OnlyBusy protects hours you already promised on another calendar.
Price
As of 3 October 2026, Calendly's pricing page lists a Free plan, Teams at $16 per seat per month when billed yearly, and Enterprise starting at $15,000 per year for 50 seats. Calendly's help, updated 1 September 2026, also lists Teams Plus at $24 per seat per month billed annually for the first 30 seats. The dollar amount for Standard did not appear in the pricing page text retrieved that day.
As of 3 October 2026, OnlyBusy lists Free at $0 with up to 2 calendars and no scheduling links, Standard at $6 a month or $50 a year with up to 4 calendars and 4 scheduling links, and Premium at $12 a month or $99 a year with unlimited calendars and scheduling links. Teams is arranged by email at privacy@onlybusy.com.
Questions
Is OnlyBusy a Calendly alternative?
Only when the job is showing Busy inside someone else's Outlook or Google calendar. Calendly remains the tool when people book through a link.
Can I use Calendly and OnlyBusy together?
Yes. Calendly collects meetings from a link. OnlyBusy writes a private Busy event so a client's scheduler sees hours that were booked somewhere else.
Does Calendly show up in Scheduling Assistant?
A Calendly link does not. Scheduling Assistant reads events on the calendar in that tenant. OnlyBusy writes one of those events, marked Busy and private.