Zellbox Blog
Insights and updates from the Zellbox team — appointment reminders, WhatsApp Business automation, and how clinics, salons, sales teams, and home services keep customer conversations in one place.
Vet vaccination recall: postal mail costs more than WhatsApp
Postal mail, email, SMS, and WhatsApp compared for a 1,200-pet veterinary practice: annual cost, response rate, and no-show rate for vaccination recalls.
Nacho Coll 10 min read
Kommo vs Callbell: An Honest 2026 Third-Party Comparison
Kommo is a WhatsApp-first CRM ($15-45/user). Callbell is a multi-channel inbox ($15-20/user + modules). Neither is us. Real prices, real fits, honest verdict.
Nacho Coll 4 min read
Best WhatsApp signed-consent tools in 2026: GDPR-ready send-and-sign
Sending a consent PDF via WhatsApp, having the customer sign on their phone, and storing the signed file on the customer record — with an audit trail — is a narrow feature. Six tools that actually do it.
Nacho Coll 9 min read
Best WhatsApp CRM for dental clinics in 2026: 8 tools compared
Eight tools dental clinics actually evaluate for WhatsApp reminders, recall, and patient records. What fits UK/EU/LATAM/APAC dental SMBs — and what the US-only players miss.
Nacho Coll 11 min read
How to Automatically Send WhatsApp Appointment Reminders
Compared: the best WhatsApp appointment reminder tools for a clinic in 2026 — features, pricing, and honest tradeoffs to pick the right fit.
Nacho Coll 11 min read
Respond.io vs Zellbox: enterprise-scale AI inbox or appointment-first SMB CRM?
Respond.io is an enterprise-grade multi-channel AI inbox (Toyota, McDonald's). Zellbox is WhatsApp + Google Calendar for appointment-driven SMBs. Real prices, honest verdict.
Nacho Coll 10 min read
Wati vs Zellbox: which WhatsApp CRM fits your business?
Wati is a multi-channel WhatsApp platform for e-commerce + support teams. Zellbox is WhatsApp + Google Calendar for appointment-driven businesses. Real prices, honest verdict.
Nacho Coll 10 min read
Fitness studios: WhatsApp campaigns that renew the 10-class pack on time
Studios lose 35% of pack renewals to silent lapse. The renewal nudge at session 7 of 10 cuts that to under 15% without sounding pushy.
Nacho Coll 7 min read
Charging WhatsApp Deposits Without Losing Bookings — Stripe Setup for Salons + Spas
Set up no-show deposits via WhatsApp and a Stripe Payment Link without breaking the booking flow — deposit tiers, refund windows, and wording that keeps bookings coming.
Nacho Coll 8 min read