SlotFill

Fill canceled appointments from your waitlist

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Free plan available

SlotFill overview

Customer waitlist widget with flexible preferences
Verified appointment-opening matching
Secure expiring offers with live availability checks

Keep your appointment calendar moving without watching a waitlist all day. SlotFill helps appointment businesses turn cancellations into customer-ready offers. Customers join from a responsive site widget and choose the services, staff, dates, and times that work for them. When a cancellation or reschedule creates a matching opening, SlotFill checks availability and emails one eligible customer a secure, expiring offer. Customers decide whether to claim or decline. Before a claim continues, SlotFill checks availability again and directs the customer to the site's existing booking flow to finish booking and payment. SlotFill never books without customer confirmation. From the app dashboard, owners can review active waitlist entries, offer outcomes, setup status, and exceptions, pause automation, control offer duration, and export or delete SlotFill-owned data. Designed for individual appointments. Classes, courses, SMS, and automatic booking are not included in this version.

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Pricing & plans

Free plan

Free

10 waitlist entries per month

On-site customer waitlist widget

Email alerts when slots open

80% and monthly limit warnings

Pro plan

15

/month

50 waitlist entries per month

Cancellation and opening alerts

One-by-one or broadcast delivery

80% and monthly limit warnings

Growth plan

32

/month

Unlimited waitlist entries per month

Cancellation and opening alerts

One-by-one or broadcast delivery

Secure Wix booking handoff

* Price is in USD.

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