FlexBooker

FlexBooker is an online appointment-booking platform for service businesses that want customers to self-schedule around the clock, with the operational tooling to run a multi-staff, multi-location operation behind it. Bookings are managed from an intuitive, color-coded calendar in a browser-based admin dashboard, and you can define any number of appointment types — from one-on-one sessions to multi-person workshops and classes.

Beyond the calendar it handles the full booking lifecycle: automated email and SMS confirmations and reminders to cut no-shows, integrated payment processing and invoicing (via Stripe), client portals and customer accounts, reporting and analytics, and access controls for staff. SMS-based automated waitlists notify people when earlier slots open up, and multi-location support covers class, event, and staff scheduling. It integrates with Google Calendar, Microsoft 365/Outlook, Stripe, Zapier, Mailchimp, PayPal, and more.

Pricing is tiered by team size with a 14-day free trial and no permanent free plan: the 1–4 employees plan starts at about $49 per month including 1,000 booked appointments, rising to $79 (5–9 employees) and $99 (10+), with extra bookings billed in blocks. FlexBooker is web-based. It fits salons, clinics, studios, and other service businesses that want a capable self-serve booking system with payments and reminders built in.