Zellbox

Zellbox is the CRM for appointment-driven businesses — one inbox, one calendar, one team. It unifies WhatsApp Business, Gmail, and Google Calendar so bookings, reminders, and customer replies all live in a single place. Automated WhatsApp reminders cut no-shows, and the whole team sees every conversation.

Zellbox brings WhatsApp Business and Google Calendar together for the businesses that live and die by their appointment book — clinics, salons, home-service trades, veterinary practices, real-estate agents, coaches, and field sales teams. Bookings, automated reminders, and every customer reply land in one unified workspace, so nothing slips through the cracks and the whole team stays in sync.

Features

  • Automated WhatsApp Reminders
    Appointment reminders go out automatically at the intervals you choose, cutting no-shows without anyone lifting a finger.
  • Two-Way Google Calendar Sync
    Bookings flow both ways between Zellbox and Google Calendar, so your team's schedule is always current on every device.
  • Unified Inbox
    WhatsApp and Gmail replies arrive in a single shared inbox — one place to read and respond, with full team visibility.
  • WhatsApp Coexistence
    Keep using WhatsApp on your phone while the same conversations stay accessible inside the CRM. No migration, no lock-out.
  • Templates & Bulk Import
    Pre-approved WhatsApp templates and Gmail merge fields, plus one-click customer import from a spreadsheet to get started in minutes.
  • Team Collaboration
    Assign roles, share the inbox, and give the whole team a single view of every customer and appointment.

Who It's For

  • Medical & dental clinics — reduce missed appointments and front-desk load.
  • Salons & wellness centers — keep the chair full with timely reminders.
  • Home services — plumbers, electricians, HVAC, and cleaners coordinating visits on the move.
  • Veterinary clinics — confirm visits and follow-ups over WhatsApp.
  • Real-estate agents & coaches — manage viewings and sessions from one inbox.
  • Field sales teams — shared visibility of every customer touchpoint.

Start free — no card required — at zellbox.com. Connect WhatsApp and Google Calendar, import your customers, and your next reminder sends itself.

Plans

  • Starter — Free
    50 customers and 50 appointments per month. No credit card.
  • Pro — $29/mo
    500 customers and 1,000 appointments per month.
  • Business — $99/mo
    5,000 customers and 10,000 appointments per month.
  • Enterprise — $299/mo
    50,000 customers and 100,000 appointments per month.

WhatsApp conversation costs are billed separately by Meta. See current plans and limits at zellbox.com.