Built by a physician, for medical practices

Half of your patients reach out when your receptionist is not there.

Calendrobot answers your practice's WhatsApp in seconds, at any hour: it answers questions, books into Google Calendar and sends confirmation reminders. Built by a physician and used in his own practice.

Answers in seconds, 24/7
Books straight into Google Calendar
Reminds, confirms and brings patients back

Get in touch See plans

Currently available in Brazil

Dr. Ana's Practiceonline

Good evening! Any openings this week?22:40

Good evening! I have Thursday at 9:30 or 2 pm, and Friday at 10 am. Which works best?22:40

Thursday 2 pm22:41

Done, you're booked for Thursday at 2 pm. I'll remind you the day before to confirm.22:41

A Tuesday, 10:40 pm. The receptionist has gone home; the patient leaves with a booked appointment.

Why answering fast changes the outcome

7×

Whoever answers first gets the appointment

A study published in Harvard Business Review, covering 1.25 million leads, found that replying within 1 hour gives about 7 times more chance of a meaningful conversation than waiting longer, and over 60 times more than waiting a day. The average company took 42 hours.

Harvard Business Review, 2011

1 in 2

Patients reach out after hours

On Zocdoc, a US booking platform, roughly half of appointments are booked between 5 pm and 9 am, while offices are closed. Published studies on online scheduling find 34% to 46% of activity happens while the office is closed. Calendrobot does not replace your receptionist: it covers the hours she is not there.

Zocdoc · ophthalmology study

Staff to cover the 168 hours of a week

A week has 168 hours and a full-time shift in Brazil has 44. Covering WhatsApp around the clock with people would take about 4 employees, each costing close to R$ 3,000 a month with payroll taxes.

receptionist salaries in Brazil

Run the numbers for your practice

Consultation fee (R$) Patients lost per week because nobody answered

Revenue lost per month—

Covering 24/7 with 4 employees would cost per month—

Calendrobot starts at—

Recovering one consultation a month already pays for the Professional plan.

From first contact to follow-up, without interrupting your front desk

1Before

Books at any hour

At night or on weekends, the patient picks a slot and it goes straight into Google Calendar.

Any openings this week?22:40

Thursday 2 pm or Friday 10 am. Which works?22:40

2The day before

Confirms or frees the slot

A reminder that asks for confirmation. Cancellations go back to the calendar right away.

Reminder: your appointment is tomorrow at 2 pm. Can you confirm?09:00

Confirmed, thanks!09:12

3After

Brings patients back on time

Lets patients know when their follow-up window is closing and when a check-up is due.

Your visit includes a follow-up until Nov 12. Want to book it?10:00

Yes please10:04

What Calendrobot does

Answers in seconds, 24/7

At night, on weekends and during consultations, patients get an answer right away on the practice's WhatsApp.

Books straight into Google Calendar

Shows the real free slots and books into the practice's calendar, with no back-and-forth.

Reminders with confirmation

Reminds 7 days before, the day before and on the day. Patients confirm or cancel on WhatsApp and the slot is freed.

Understands free text and voice

On the Complete plan, the AI assistant chats naturally and understands voice messages, no button menus.

Recognizes emergencies

When a patient describes an emergency, it advises calling emergency services and alerts the team right away by WhatsApp and email.

The team takes over anytime

Prescription requests, quotes or sensitive matters go to the receptionist with a summary of the conversation.

Built by a physician, used in his own practice

I'm Dr. Andrei Salvioni, a urologist, and I run my own practice. Calendrobot was born from the real day-to-day of my clinic: follow-ups, prescriptions, medical certificates, procedure quotes. Only then did it become something other practices could use.

As a physician, I know what a front desk must not say. The assistant gives no clinical advice, makes no diagnosis and promises no results. It handles logistics and passes anything medical to the team.

How it works

1
Setup conversation
In about 30 minutes we write down your hours, fees, appointment types and practice rules.
2
Guided connection
You connect the practice's WhatsApp and Google Calendar through Meta's and Google's own screens, in about 10 minutes.
3
Test before going live
You chat with the assistant as if you were a patient. Only then does it start answering real patients.

Plans (Brazil)

Monthly prices in Brazilian reais. Early partner practices get special terms during the pilot.

Schedule

Solo professionals

R$ 147/month

1 calendar
Book, reschedule and cancel on WhatsApp
Google Calendar
Reminders 7 days, day before and same day, with confirmation
Hand the conversation to the receptionist

Recommended

Professional

Practices with a receptionist

R$ 297/month

Up to 3 calendars
Everything in Schedule
FAQ and requests (quotes, prescriptions, documents)
Payment before the appointment
Reports dashboard

Complete

Clinics with several people

R$ 597/month

Up to 10 calendars
Everything in Professional
AI assistant: understands free text and voice
2,500 AI credits a month (about 415 conversations)
Automatic follow-up reminders

1 credit = 1 reply from the AI assistant.

How Calendrobot uses Google Calendar

The clinic connects its own Google account and chooses which calendar appointments are booked in. Calendrobot uses this access only to:

see which time slots are free, to offer them to the patient;
create the event for an appointment booked on WhatsApp, and update or delete it when the patient confirms, reschedules or cancels;
read appointments booked by the receptionist, to send confirmation reminders;
list the account's calendars once, when connecting, so the clinic can choose which one to use.

Calendar data is not sold, not used for advertising, not shared with third parties and not used to train artificial intelligence. The clinic can disconnect at any time in its Google account settings. Details in the privacy policy.

Frequently asked questions

Does the assistant give medical advice?

No. It handles times, fees and administrative requests. Any clinical question goes to the team, and assessment stays with the professional, in a consultation.

What if a patient describes an emergency?

The assistant recognizes it by keywords and meaning, advises calling emergency services, pauses automatic replies in that conversation and alerts the team by WhatsApp and email.

Are conversations used to train AI?

No. The assistant uses Anthropic's AI through its commercial API, whose terms forbid training models on customer content. Calendar data is not used for that either.

How is patient data handled?

The practice is the data controller and Calendrobot is the processor. A patient's data can be deleted at any time from the dashboard, and data of patients inactive for 2 years is deleted automatically.

Does it use the official WhatsApp?

Yes. Calendrobot is a Meta-approved tech provider and uses the official WhatsApp Business API, on the practice's own number.

Do I need to change calendars?

Not if you already use Google Calendar. The assistant books into the calendar you choose, and appointments the receptionist adds there also get reminders.