What it does inside Slack
One click with your Slack account. No extra password to remember, and your team is matched by work email.
Tap Book time off in the Home tab or a direct message, pick your dates, and the request is on its way, without opening another app.
Approvers get a direct message with Approve and Decline buttons, so requests do not sit in an inbox. Everyone hears back when it is decided.
Pick a channel and a time, and Book Time Off posts who is off that day, so nobody is caught out by an empty desk.
Type /whosoff in any channel to see who is away today and in the next week, plus how many days you have left.
Connect your own Slack once and your status shows On leave while you are off, then clears itself when you are back.
Book Time Off sends messages, posts the digest and sets leave statuses. It never reads your conversations, and it matches people only by their work email.
Adding it to your workspace
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Add to Slack
Tap Add to Slack and approve the app for your workspace once. If your company is new to Book Time Off, a free trial is created on the spot with you as the owner.
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Bring your team in
Add your people in Book Time Off with the same email they use in Slack. That work email is how the bot matches everyone up.
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Choose your digest channel
In Settings, pick the channel for the daily who's-off summary and set the time. That is the channel sorted.
An admin connects your Slack workspace from Settings · Connected apps · Slack, then each person can connect their own Slack for the On leave status. Nothing about your existing account changes.
How the price compares
The Slack experience is included in the flat £1, where other tools either charge a higher tier for the chat features or sell them per seat on top.
| Book Time Off | Timetastic | Vacation Tracker | |
|---|---|---|---|
| Price | £1 / user / month (flat) | £1.20 Basic / £2 Pro | Per-user, billed separately |
| Sign in with Slack | Included | Not offered | Included |
| Book & approve in Slack | Included | Notifications only | Included |
| Daily who's-off to a channel | Included | Pro plan | Included |
| Automatic On leave status | Included | Not offered | Included |
| Separate balance per leave type | No · one shared allowance | Yes | Yes |
One honest difference to weigh: Book Time Off records leave types such as sickness or unpaid leave as categories on one shared allowance, with annual leave drawing down the balance. If you need a separate pot and approval flow per leave type, that is a real difference. For most small teams it is not a blocker, and the simpler model is part of why the price stays flat. Slack shows the day-to-day summaries; the full calendar and wallchart live in the web app.
Frequently asked questions
No. Tap Book time off in the Book Time Off Home tab or a direct message, choose your dates, and the request is created. Approvers get a direct message with Approve and Decline buttons, so requests do not sit in an inbox. Everyone gets a message when a request is decided.
Yes. Choose a channel and a time, and Book Time Off posts a daily who's-off summary there. Anyone can also type /whosoff in any channel to see who is away today and how many days they have left.
Yes, if you connect your own Slack once. While you are on approved leave your Slack status shows On leave with a palm tree, and it clears itself automatically when you are back.
It is included in the flat price of £1 per user per month. There is no separate Slack tier and no add-on fee. Sign in with Slack, the channel digest, /whosoff and On leave statuses all come in the one price, with a 30-day free trial and no card required.
You can start straight from Slack. Add Book Time Off to your workspace and, if your company is new to it, a free trial account is created for you on the spot, with you as the owner. If your company already uses Book Time Off, an admin connects the workspace from Settings.