Aircall alternative — WhatsApp CRM for appointments
Aircall is a cloud phone system with WhatsApp add-ons for support and sales 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. Aircall described from their pricing page as of August 2026. Correction? Ping me on LinkedIn.
If you’re comparing Aircall, you’ve likely also seen RingCentral, Dialpad, or JustCall. Aircall is a cloud phone system with WhatsApp added — voice-first, CRM-integrated. Zellbox is a different product: appointment-driven small businesses that need WhatsApp reminders tied to a calendar.
Where Aircall fits
Aircall is at its best when your team lives on the phone: outbound sales calling, inbound support, CRM-integrated call logging in HubSpot or Salesforce. WhatsApp is a bolt-on channel next to the phone stack.
Where Zellbox fits
If your business runs on visits and WhatsApp is your primary reminder channel, Zellbox is the fit: Google Calendar sync + WhatsApp templates + signed consent, no phone-system infrastructure to swallow.
Feature-by-feature
| Zellbox | Aircall | |
|---|---|---|
| Google Calendar sync | Native, bidirectional | Not native |
| Appointment reminders | Native templates + schedule | Not the focus |
| Signed consent PDFs | Native | Not available |
| Cloud phone system + call routing | No | Native + strong |
| Pricing entry | Free forever, Pro $29/mo (5 users) | Essentials $40/user/mo |
When to pick which
Pick Aircall if: your team is voice-first — outbound sales calling or inbound phone support — and WhatsApp is an add-on channel.
Pick Zellbox if: your business runs on WhatsApp-first reminders tied to a Google Calendar, and you don’t need a cloud phone system to run.
Migration checklist: switching from Aircall
If Aircall’s phone-system stack has been overkill for a team that mostly needs WhatsApp reminders, moving to Zellbox is a data-export + reconnect exercise, not a rebuild.
Export your Aircall contacts and call/conversation history
Pull your customer directory and call/WhatsApp conversation history out of Aircall’s dashboard before you switch — Aircall’s admin panel lets you export contacts and call logs as a CSV. Note down any WhatsApp message templates you’ve been sending through its integrations so you’re not rewriting them from scratch.
Reconnect your WhatsApp Business number to Zellbox
Your WhatsApp Business Account (WABA) and phone number live with Meta, not Aircall, so the number itself is portable. In Zellbox, use the Embedded Signup flow to re-point that same WABA at Zellbox’s infrastructure — about 10 minutes, no new number, and no loss of message history with existing customers.
Rebuild your automations and templates in Zellbox
Recreate the handful of templates you actually send (appointment confirmation, 24 h reminder, 2 h reminder) inside Zellbox’s template library — most clinics and salons need 3-5, far fewer than a general call-center integration usually accumulates. Import your exported contacts, connect Google Calendar, and the reminder schedule takes over automatically with no call-routing rules to maintain.
Aircall vs Zellbox: pricing at a glance
| Aircall | Zellbox | |
|---|---|---|
| Per-seat cost | Essentials from $40/user/mo | Free forever (2 users), Pro $29/mo flat (5 users) |
| WhatsApp conversation fees | Add-on channel, billed separately from voice | Included — no per-conversation billing on any plan |
| Setup/integration overhead | Phone system + CRM (HubSpot/Salesforce) integration setup | ~10 minutes via Embedded Signup, no code required |
About the author: Nacho Coll is the founder of Zellbox. He writes about WhatsApp Business automation for appointment-driven small businesses.
Coming from a BSP like 360dialog instead? Read the 360dialog alternative breakdown.
Serving LATAM SMBs instead? Compare Auronix here: Auronix alternative breakdown.
Frequently asked questions
What kind of business is Aircall built for?
How does Aircall'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.
