Front alternative — WhatsApp CRM for appointments
Front is a shared inbox for customer-facing teams. Zellbox is WhatsApp + Google Calendar for appointment-driven small businesses. Honest verdict.
by Nacho CollNacho founded Zellbox to give appointment-driven small businesses — clinics, salons, spas, physio, aesthetics, vets, mental-health, and fitness studios — a WhatsApp-first calendar and customer record system.
Editorial disclosure: I work at Zellbox, so this post is biased. Front described from their pricing page as of August 2026. Correction? Ping me on LinkedIn.
If you’re comparing Front, you’ve likely also seen Missive, Superhuman, or Google Workspace shared inboxes. Front is a shared inbox for customer-facing teams — collaborative email + SMS + WhatsApp with assignments and comments. Zellbox is a different product: appointment-driven small businesses that need WhatsApp reminders tied to a calendar.
Where Front fits
Front is at its best when your team is triaging shared conversations across multiple channels — logistics, professional services, ops teams where several people need to see and respond to the same email or WhatsApp thread.
Where Zellbox fits
If your business runs on visits, shared-inbox collaboration is the wrong shape. Zellbox is calendar-native — outbound reminders fire from your appointment schedule, not inbound triage from a queue.
Feature-by-feature
| Zellbox | Front | |
|---|---|---|
| Google Calendar sync | Native, bidirectional | Not native |
| Appointment reminders | Native templates + schedule | Not the focus |
| Signed consent PDFs | Native | Not available |
| Shared inbox + collaboration | Basic | Native + strong |
| Pricing entry | Free forever, Pro $29/mo (5 users) | Starter $19/seat/mo |
When to pick which
Pick Front if: your team collaborates on shared conversations across email + SMS + WhatsApp and you need assignments, comments, and shared drafts.
Pick Zellbox if: your business runs on appointments and you want WhatsApp reminders that know your calendar — outbound-first, not inbound-triage.
About the author: Nacho Coll is the founder of Zellbox. He writes about WhatsApp Business automation for appointment-driven small businesses.
The same worldwide-WhatsApp verdict applies if you’re comparing Podium’s SMS-first inbox instead — see our Podium alternative breakdown.
Freshworks’ Freshdesk takes a ticketing-queue approach to WhatsApp rather than Front’s shared-inbox model — see our Freshdesk WhatsApp alternative comparison for that angle. Looking for a WhatsApp-only sales inbox instead of a multi-channel shared inbox? Our Gallabox alternative comparison covers that angle.
Frequently asked questions
What kind of business is Front built for?
How does Front's pricing compare with Zellbox?
Which one is better for a clinic or salon?
About the author
Nacho Coll
Founder & Engineer at Zellbox
Nacho founded Zellbox to give appointment-driven small businesses — clinics, salons, spas, physio, aesthetics, vets, mental-health, and fitness studios — a WhatsApp-first calendar and customer record system. Writes about WhatsApp Business automation, no-show economics, recall-cycle playbooks, and the operational realities of running visit-driven businesses at scale.
