Let your clients book, confirm and reschedule appointments inside the same WhatsApp conversation they already use to ask you questions. No app to install. No login screen. No booking page they will close before finishing.
You set it up once, the bookings show up on your calendar, the reminders go out on autopilot.
Engrana is WhatsApp appointment booking software for service businesses. Your clients write to your WhatsApp number, the AI agent shows real availability, books the slot on your calendar and sends the reminder. You stop chasing confirmations and stop losing bookings to a Calendly link nobody clicks. Base plan 89 EUR per month, no lock-in, 60-day money back guarantee on the setup. Personalized onboarding included.
These are the three losses we see in every service business that books through WhatsApp manually or through a booking page outside the chat.
A client books on Monday and forgets by Friday. Nobody asked them to confirm. They do not show up. You lose the slot, the revenue and the chance to fill it from your waiting list. Service businesses in Spain typically see 15 to 25 percent no-shows when there is no reminder system in place.
Your team or you spend 2 to 3 hours a day in WhatsApp confirming, rescheduling and answering the same questions about price, location and parking. That is time that is not on the chair, not at the desk, not delivering the service that pays the bills.
Someone writes at 22:30. Nobody answers until tomorrow at 10:00. By then they booked with the place that replied first. Conversations that arrive after 19:00 or on weekends represent roughly a third of inbound messages in service businesses, and most of them die there.
Four pieces, one number, one conversation per client. No new tab, no new app.
An AI agent on the official WhatsApp Business API that understands what the client is asking, checks real availability, offers options and books. It calls clients by name, knows their history and matches your tone. When something is outside its lane, it hands the chat to you with the full context.
Reminders go out at the schedule you choose (24h before, 3h before, the night before, whichever fits the service). The client confirms with a single tap. If they cancel, the slot is released and your waiting list gets a chance. If they ignore the reminder, your policy kicks in automatically.
Engrana ships with a native agenda: independent calendars per professional, service duration rules, buffer times, holidays, waiting list. You do not need to bring a separate booking tool. If you already use Google Calendar or a vertical sector software (Dentalink for dental, Cloudbeds for hotels, others) Engrana coexists with it instead of replacing it.
After the appointment the system asks the right clients for a Google review with a direct link, at the right moment, personalized. The ones you would never ask manually because the day got busy. This is where most service businesses move from a handful of reviews per year to dozens per month.
Three steps. The client only sees step two.
During a kickoff call we load your services, durations, prices, working hours, booking policies, cancellation rules and tone of voice. We connect your WhatsApp Business number (or get you a dedicated one) and link your calendar. You review, we adjust, we go live.
Average time from kickoff to first live booking: 7 to 14 days.
Your client texts your WhatsApp number from their phone. The agent greets them by name if they have booked before, checks what they want, offers real availability, holds the slot and confirms. The whole exchange takes less than a minute and feels like a polite human on the other side. The client never leaves WhatsApp.
Open rate of WhatsApp messages: roughly 95 percent. Email opens, around 20 to 25 percent.
The system sends reminders the day before and a few hours before. It asks for confirmation. If the client cancels late, your policy applies and the slot offers itself to the waiting list. After the visit, the agent asks for a Google review with a direct link. You see the whole timeline per client in your dashboard, with the option to step in any time.
Where Engrana fits versus the three alternatives most service businesses consider first.
| What matters | Engrana | Booking page only | Calendly or similar | Fresha or sector platform |
|---|---|---|---|---|
| Client books inside WhatsApp | ||||
| Conversational AI that knows the client | Partial | |||
| Automatic reminders by WhatsApp | Email only | Email only | ||
| Waiting list and slot recovery | Some plans | |||
| Google review collection on autopilot | Add-on | |||
| Done-for-you setup, no DIY | ||||
| Coexists with sector software (PMS, dental, others) | ||||
| Lock-in contract | no lock-in | Depends | Often yes |
Where you should pick a sector platform like Fresha or Booksy: when your priority is point-of-sale, inventory and stylist commission inside the same tool. Where you should pick Engrana: when the WhatsApp conversation is where your bookings actually happen and you want it answered properly.
Three examples of how the booking flow looks in practice.
Independent calendars per stylist, services with different durations (cut, color, full color and cut), waiting list for Saturdays, reminder 24h and 3h before, automatic Google review request the evening of the appointment.
Typical outcome: no-shows drop from 15 to 5 percent and Saturdays fill from the waiting list instead of staying empty.
Engrana coexists with your vertical software (Dentalink, Klinikare, Gesden, Clinic Cloud). It handles WhatsApp: first visits, recall at 6 and 12 months, reminders, late confirmations, deposit collection through Stripe for tier-one tickets. Operational only, never clinical advice.
Typical outcome: recall reactivation that nobody had time to do manually pays for the system several times over.
Sessions booked by package, automatic reminder of remaining sessions, alert before a voucher expires, post-session check-in. The same WhatsApp number that the patient already uses for everything becomes the booking, reminder and follow-up channel.
Typical outcome: patients finish their treatment plans more often because they stop forgetting they still have sessions.
Open rate of WhatsApp messages, against 20 to 25 percent on email. The reminder is actually read.
No-show reduction that automated reminders deliver, depending on sector and policy strictness.
Of inbound client messages arrive after 19:00 or on weekends. Most go unanswered until next day.
Sources: WhatsApp Business benchmarks (open rate), Yapi and sector studies on automated reminders, Agilux and Clinicas Llenas on inbound timing for service businesses in Spain.
The base plan includes the WhatsApp agent, the smart agenda, automatic reminders, the review collector and your dashboard. Setup is personalized and quoted after the demo because the work depends on how complex your services and rules are.
60-day money back guarantee on the setup. Cancel any time.
Three deeper reads that cover the most asked questions about booking and no-shows on WhatsApp.
Why DIY confirmations on WhatsApp Business eat more hours than they save and where the real ceiling is.
Cancellation policy, deposit, waiting list, reminder cadence. Field-tested playbook for service businesses.
Why generic schedulers stall when the actual conversation is happening in WhatsApp and how to fix the flow.
Direct answers to the questions service business owners ask before booking the demo.
A 20-minute demo with your real calendar, your real services and a real test conversation. If at the end you do not see how it pays for itself, you walk away. If you sign and it does not deliver what we agreed in the first 60 days, we refund the setup.
Most service businesses are live within 7 to 14 days from kickoff.