The appointment gets booked before you've even seen the email.
A customer asks for a slot. Space Cake checks your diary, offers them a real one, and books it in the moment they reply — no calendar app to connect, no chance of double-booking, and a calendar invite waiting in their pocket before you're back at your desk.
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Four steps, no back-and-forth.
They ask to book
A customer emails asking for an appointment — this week, next Thursday, whenever suits.
It checks your real diary
Your opening hours, minus what's already booked, minus any days you've blocked out.
It offers real free times
Never a time that's already taken, and never a time it made up.
They pick one — it's booked
The slot is locked in your diary and a calendar invite lands in their inbox.
Useful for the appointments customers already ask for by email.
Standard appointments
Lessons, treatments, check-ups, cleans, services, and routine slots where the length and working hours are already clear.
Free calls or walkthroughs
Let customers pick a real time for a quick call, quote visit, consultation, or measure-up without a long email chain.
Repeat visits
Keep regular customers moving from "are you free again?" to a confirmed slot while you are busy with the current day.
It can't double-book you.
The instant someone confirms a slot, Space Cake locks your diary and checks, one more time, that the time is still genuinely free. If two customers somehow reply to the same slot at once, the second one is told it's just gone and offered the next best time — it can never end up double-booked. That's not a setting that could be switched off by accident. It's how the booking is built.
There's no calendar to connect.
Most tools bolt onto your Google or Outlook calendar — another account to link, another thing that can fall out of sync. Space Cake's diary lives inside Space Cake. Set your hours and block out the odd day off, and it's ready. Nothing to connect, nothing to keep in sync.
A proper calendar invite and a reminder, sent for you.
Every booking lands straight in the customer's own phone calendar as a real invite, and Space Cake sends a friendly reminder the day before — automatically, with no extra tapping from you. It's the small polish that quietly cuts down on people forgetting.
You're always the one in charge of the diary.
Nothing until you say so
Booking stays switched off until you turn it on — no surprise appointments.
Block out your time off
Holidays, half-days, whatever you need — done in seconds, and it's respected instantly.
Add a booking by hand
Someone books over the phone? Add it yourself — it goes through the same no-clash checks.
Let the next booking land itself.
Connect your inbox, set your hours, and Space Cake starts offering real appointments the moment you're ready.
7-day free trial · connect your inbox in 5 minutes · cancel anytime.