Fillsy
When a client cancels, the slot doesn't have to stay empty.
We fill cancelled appointments automatically — so more of your calendar stays booked, and less revenue slips through the cracks.
Read-only to start. Nothing changes on your calendar until you say so.
Fillsy
You're confirmed for Thursday 3:00pm. See you then.
Automatic
kicks in the instant a client cancels — nobody has to notice or call it in
Price-safe
a discount is always the last resort, never the first move
No contract
leave any time, right from your own dashboard
Risk-free
nothing changes on your calendar until you decide it's worth it
How it works
Four stages. Full price protected as long as possible.
Cancelled
We're standing watch over every booking, all day — the instant one opens up, we're already on it.
Offer them a different day
If it's the same client who just cancelled, we ask right away if a different day works instead — no forms, no checkout, just a reply.
Prevent the lossMove someone up
We find someone who already has a later visit booked and offer them your newly-opened earlier slot — full price, always.
Optimize the timeDiscount to fill
Still open? We ease the price down, step by step, until it sells — a discount is always the last resort, never the first move.
Win the saleSame-day win
Diego's chair went empty at 11:42. It was full again by 11:47.
No front desk. No group text. No lost sale.
Maya cancels her 2:00 PM with Diego.
Four regulars get the same text.
Diego has a 2:00 PM opening today. Want it? Reply YES to grab it.
Priya replies first. Slot's hers. Claimed
YES
Booked straight into Diego's calendar. Full price. Automatically.
5min
Time to refill
$45
Revenue saved
$0
Discount given
0
Staff touches
Read the full walkthrough · Six real situations, step by step →
Your prices stay yours
Guardrails, not a discounting habit.
Nothing discounts until you turn it on. Every service is opted out by default — you choose which ones Fillsy is allowed to touch.
You set the floor and ceiling. A discount only ever moves inside the range you pick.
A weekly cap on how much gets discounted. Recovery can't quietly become your default motion.
Move-ups and returns are never discounted. Full price, always — only genuinely new business ever gets a markdown.
Simple, performance-based pricing — you only pay when we actually put money back in your pocket. See how it works →
Works with Square Appointments
Not another app for your clients to install.
Connects to the account you already run on. Claim links open in a browser — no app, no account, nothing for a client to download.