About 4appointments

About 4appointments

Online booking platform for appointment-based businesses: 24/7 booking page, Google Calendar and Outlook sync, automated SMS+email reminders and online payment at booking time.

4appointments is the online booking platform in the 4b2b ecosystem, alongside 4invoices.net (invoicing), 4notify.net (SMS/Email/WhatsApp notifications) and 4hosting.net (hosting). We centralise online bookings in one place 24/7: two-way calendar sync with Google Calendar and Outlook, automated SMS+email reminders that dramatically cut no-shows, team scheduling for multi-specialist businesses, multi-location support and online payment at booking time. Fewer confirmation calls, fewer lost slots, more time for the clients who actually show up.

Frictionless booking

Your client lands on the booking page, picks the service, the specialist and a free slot — in seconds, no phone calls, no three-message back-and-forth. Availability updates live from your calendar.

Reminders that actually work

Automatic SMS and email before each appointment, with one-click confirm or reschedule. No-show rates drop dramatically and you stop wasting time on confirmation calls.

Scales across teams and locations

One account handles multiple specialists, multiple services and multiple locations. Each specialist has their own schedule, services and calendar — the client only sees what matters to them.

The team

4appointments is built by a small product and ops team shipping scheduling infrastructure for medical and dental clinics, salons, consultants, personal trainers, fitness studios and other appointment-based businesses. We focus on a product that just works — no 50-page manual, no weekly reconfiguration.

Certifications and compliance

GDPR compliance for client and specialist data. ISO 27001-aligned security for data storage and transit. Payments at booking time follow PSD2 SCA (Strong Customer Authentication). Google Calendar API and Microsoft Graph (Outlook) integrations are officially verified for two-way calendar access.

Part of the 4b2b ecosystem

4appointments is not a stand-alone app. Natively integrated with 4invoices.net (auto-invoice on completed appointments), 4notify.net (extended SMS and WhatsApp campaigns beyond standard reminders) and 4hosting.net (host your booking microsite). One account, one bill.

Live in 10 minutes

Connect your calendar, configure services and working hours, share your booking link. Your first clients can book the same day.

About 4appointments — online booking for businesses