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.
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Spa + wellness: turning WhatsApp inquiries into booked treatments
Phone inquiries convert at 18%. WhatsApp inquiries convert at 47%. The flow that closes more bookings before the customer cools off.
Nacho Coll 7 min read
Applications open — 5 free Business Zellbox licenses ($1,188/yr each) plus founder-run onboarding
We're picking five appointment-driven SMBs to get Business Zellbox free for 12 months, with the founder personally handling setup. Applications close September 18, 2026.
Nacho Coll 5 min read
Walk-ins vs WhatsApp booking — the math for a 4-chair barber shop
Walk-ins die. WhatsApp bookings stick. The math + the conversion data for a busy 4-chair shop running 80 cuts per chair per week.
Nacho Coll 7 min read
GDPR Checklist for Private Clinics (2026): What Auditors Actually Look At
A working GDPR checklist for private clinics — what the regulator asks about consent, retention, breach response, and the WhatsApp channel question. Updated for 2026 with the AEPD / CNIL / Garante audit pattern.
Nacho Coll 9 min read
Beauty salon: stylist-aware customer recall (who cuts what, when)
Maria cuts with Sofia, colours with Carla. A generic CRM doesn't know that. The recall protocol that keeps the chair full and the stylist relationship intact.
Nacho Coll 7 min read
Zellbox passes Google CASA Tier 2 security assessment
Zellbox cleared Google's CASA Tier 2 — the audit for apps using restricted OAuth scopes like Gmail and Calendar. What it covered, why it matters.
Nacho Coll 3 min read
Confidential WhatsApp flows for psychology + mental-health practices
Reminders that name the time, never the diagnosis. The protocol that protects the patient relationship while cutting no-shows below 6%.
Nacho Coll 7 min read
No-Show Policy Templates That Don't Lose Customers — Salon, Clinic, Spa
Three no-show policy templates (consumer-friendly, balanced, strict deposit) for salons, clinics, and spas. With the WhatsApp wording that turns the policy into a reminder customers actually thank you for.
Nacho Coll 8 min read