AgendaPro vs Zellbox: which CRM for clinics?

Editorial note: I work at Zellbox, so this post has a natural bias. I described AgendaPro as accurately as possible from their public pages in June 2026. If you spot an error, ping me on LinkedIn.

If you run a private clinic, physiotherapy practice, aesthetic center, or veterinary practice and are shopping for a CRM with WhatsApp, you’ve probably come across AgendaPro — one of the established players in LATAM. The natural question: how does Zellbox compare?

Short answer: they solve overlapping but different problems. It’s worth understanding where each one shines before you decide.

The fundamental difference

AgendaPro is an online scheduling platform with add-on modules.

• Focus: calendar management + client records + online payments + modules for different sectors.
• Pricing model: per user/month + add-ons (WhatsApp, payments, marketing).
• Core value: self-service online booking plus multi-sector features (beauty, health, fitness).

Zellbox is WhatsApp + Google Calendar as the clinic’s operating system.

• Focus: the patient’s operational lifecycle — reminders, confirmations, follow-ups, GDPR consent.
• Pricing model: usage-based (active patients + monthly messages).
• Core value: fewer no-shows + a shared WhatsApp inbox + native Google Calendar integration.

What AgendaPro does well

• Online calendar with self-service booking — the patient picks a slot on a public page without picking up the phone.
• Integrated online payments — cards, installments, and local payment rails processed inside the platform.
• Broad LATAM coverage — Argentina, Mexico, Chile, Colombia, Peru, Brazil, with multi-country support.
• Sector-specific modules — beauty, health, fitness, and veterinary, each with dedicated workflows.
• Native mobile app — iOS and Android with full feature parity.

If your main need is self-service online booking + integrated payments + a presence across multiple LATAM countries, AgendaPro is probably the right choice.

What Zellbox does well

• Native WhatsApp Business API via Meta Embedded Signup — connected in 10 minutes, with Meta-pre-approved templates for clinics.
• Two-way Google Calendar sync — an event created in Zellbox shows up in the doctor’s Google Calendar, and vice versa. No manual duplication.
• Shared WhatsApp inbox — the whole team sees the conversations, and whoever replies first is logged.
• GDPR consent with a signed PDF on the patient record — for regulator audits (LOPDGDD in Spain, LGPD in Brazil), traceable proof of informed consent.
• Content + workflows by vertical — private clinics, physiotherapy, aesthetics, and veterinary, with sector-specific guides grounded in each sector’s economics.
• Usage-based pricing (not per seat) — add doctors and assistants without renegotiating licenses.
• Permanent free plan — no expiring trial.

Comparison table

What Zellbox does NOT do (and when it matters)

To be upfront:

• Public self-service booking — Zellbox is back-office; patients don’t book themselves online. If that’s your acquisition channel, AgendaPro is a better fit.
• Direct online card payments — you’d need to plug in Stripe separately. AgendaPro has it built in.
• Native mobile app — we ship responsive web. It works on mobile, but there’s no dedicated app.
• Heavy marketing campaigns and broadcasts — not our focus. Our templates are operational (reminders, confirmations, cancellations), not conversational or promotional.

If any of those four is critical, AgendaPro or a similar product (Konnecta, Pluga) is a better fit.

What AgendaPro does NOT do (and when it matters)

• True two-way Google Calendar sync — AgendaPro can display Calendar events, but the clinic’s primary calendar stays inside AgendaPro. For clinics that already live in Google Calendar, that creates operational friction.
• A genuinely shared WhatsApp inbox with unified per-patient history — yes, AgendaPro has WhatsApp, but the integration feels more like a bolt-on module than a core product.
• GDPR consent signed as a native PDF — worth checking case by case.
• Deep vertical content — AgendaPro covers many sectors, so each one gets less depth than the focus we give to clinics, physio, aesthetics, and vet practices.

The deciding questions

1. What matters most right now?

• Bringing in more patients via online booking → AgendaPro
• Reducing no-shows from the patients you already have → Zellbox

2. Does your team already use Google Calendar?

• Yes, and we want to keep it as the source of truth → Zellbox
• No, or we’re flexible about switching calendars → AgendaPro

3. How are you growing — headcount or volume?

• Adding people (more doctors, more assistants) → Zellbox (no per-user charge)
• More volume with the same team → both work, though AgendaPro can get expensive past 5 users

Honest verdict

Both products have their place. The question isn’t “which is better” — it’s “which fits how you operate today”.

→ To see Zellbox in your sector: pricing and the sector pages. → To try it: start free. Setup in 12 minutes, no card required. → Official AgendaPro page: agendapro.com (no affiliation).

About the author: Nacho Coll is the founder of Zellbox. He writes about WhatsApp Business automation for SMBs that run on a calendar.

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