Answers customers, sells and gives you your time back
WhatsApp chatbot for private tutors in Brazil, with your business's Brain
What CertuAI measured on the WhatsApp of 67 businesses
Across the 67 businesses that answer with CertuAI's AI, 32.5% of the 122,720 customer messages arrived outside Monday to Friday, 8 a.m. to 6 p.m. (July 30 to September 30, 2026). Half of the AI's replies went out within 11.7 seconds, and 9 in 10 within 20.7 seconds (38,908 replies). 34.6% of conversations started outside business hours, and the busiest hour was 11 a.m.
| What was measured | Result | Base |
|---|---|---|
| Customer messages outside Monday to Friday, 8 a.m. to 6 p.m. | 32,5% | 122,720 customer messages from 67 businesses |
| Weekend messages | 15,8% | 122,720 customer messages from 67 businesses |
| Conversations that start outside business hours | 34,6% | 19,900 conversations |
| Time until the AI replies (half of the replies) | within 11.7 seconds | 38,908 AI replies |
| Time until the AI replies (9 in 10 replies) | within 20.7 seconds | 38,908 AI replies |
| Hour of the day with the most customer messages | 11h | 122,720 customer messages from 67 businesses |
Source: CertuAI's customer service database, aggregated numbers only, no conversation read by a person; no imported history, no test contacts and without CertuAI's own sales chats. July 30 to September 30, 2026, measured on Oct 9, 2026. Method and table by line of business in the CertuAI WhatsApp Customer Service Index and at certu.com.br/dados.
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
| Alpha RH human resources | 3.082 | 1.666 | 721 | 27,5% | 15,6 s | 52 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
You cannot stop a lesson to answer someone asking for a quote. The agent answers the price, subject and open time slot, and already books the first lesson on your calendar.
See the AI agent demos.
What is the best WhatsApp chatbot for private tutors in Brazil?
The best WhatsApp chatbot for private tutors in Brazil is the one that answers on the number your business already uses, with business rules written by you. An AI agent on WhatsApp for a private tutor is CertuAI's automatic assistant that answers the price of a single lesson and of a package, the subjects and grade levels you cover, whether the lesson is online or in person and which windows are open, and books the first lesson while you are with another student.
Summary in 7 facts
- You cannot stop a lesson to answer someone asking for a quote.
- The agent answers the price, subject and open time slot, and already books the first lesson on your calendar.
- See the AI agent demos.
- The best WhatsApp chatbot for private tutors in Brazil is the one that answers on the number your business already uses, with business rules written by you.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday situations in your business before and after the CertuAI agent.
- The agent wins at repetitive tasks, and the person keeps winning at what takes judgment.
By the numbers
| Number | What it means |
|---|---|
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
What changes in your business with an AI agent?
What changes is who answers first: the message no longer waits for you and is answered right away. These are four everyday situations in your business before and after the CertuAI agent.
TodayA quote request arrives in the middle of a lesson and you only answer at night
With CertuAIThe agent answers the price and availability right away, without interrupting the lesson
TodayBooking the first lesson takes ten messages to find a time
With CertuAIThe agent shows your open windows and locks in the time in one conversation
TodayYou accept an in-person lesson and find out later the neighborhood is too far
With CertuAIThe agent asks the address first and answers with the travel rule you set
TodaySomeone who asked the price and disappeared is never followed up again
With CertuAIBecomes a contact in the CRM and gets an automatic follow-up
What does a conversation handled by the AI look like?
Example conversation
Your business's AI agent
Customer: Do you teach 11th grade?
AI agent: The subjects and grade levels covered are what you entered.
Customer: Is there a free slot on Wednesday afternoon?
AI agent: On Wednesday afternoon I have your open time slots. Is it online or in person?
Is an AI agent or manual service better for private tutors?
The agent wins on repeated tasks, and the person keeps winning on anything that takes judgment. With manual service, someone in your business has to stop what they are doing; with the CertuAI agent, the reply goes out on its own and you step into the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Quote request during a lesson | Either you interrupt the student, or you answer hours later | Answered right away, without taking your attention off the lesson |
| Question about the subject and grade level covered | Repeated with every new contact | Answered automatically, with what you cover |
| Booking the first lesson | Turns into back-and-forth messages until a time is found | Settled in one conversation, with the time slots you left open |
| In-person lesson that is too far | Discovered when you have already agreed on a time | The agent asks the neighborhood first and applies the rule you wrote |
| Student who disappeared after the quote | You remember them when you remember | Becomes a contact in the CRM and gets an automatic follow-up |
What does the WhatsApp agent do for private tutors?
It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers members your way, with your rules.
Price of a single lesson and of a package
Price per hour, monthly package and what changes between online and in person, the way you define it.
Subjects and grade levels covered
What you teach and at what level, including what you do not take, answered without you repeating it.
Schedule and open time slots
The agent shows the windows you left open and locks in the time, respecting the travel time between one lesson and the next.
In-person service area
The neighborhoods you go to, the distance beyond which you charge for travel and when the lesson is online only.
Follow-up with people who asked for a quote
Every request becomes a contact in the CRM, with an automatic follow-up if the person does not come back.
What questions do members send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday messages in your business no longer depend on you having your phone in hand.
How does the agent start answering for your business?
In three steps, the same day. No installation, no code and no changing the number members already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
The agent answers
Answers right away, schedules, does follow-up, and records each contact in the built-in CRM. You take over any conversation whenever you want.
How much does an AI agent on WhatsApp cost for private tutors?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.
Get started now
Create the agent and connect WhatsApp to see it working in your business.
Create my agentWhat needs to be ready before you turn the agent on in your business?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- The price of a single hour, of the monthly package and the difference between online and in person
- The subjects and grade levels you cover, and the ones you do not take
- The windows of the week that stay open for a new lesson, with travel time already deducted
- The neighborhoods you serve in person and the distance beyond which you charge for travel
- Your no-show and rescheduling rule, with how many hours of notice you accept
Whether the agent locks in the first lesson directly on your calendar or only offers time slots and the confirmation comes from you.
The most common mistake: Opening the whole calendar to the agent without separating travel time. Two in-person lessons back to back in different neighborhoods become a late arrival for the second, and the agent that booked it was following the rule you gave. Read how to fix this.
Frequently asked questions from private tutors
Does it work for someone who teaches alone, with no secretary?
That is exactly the case. The agent plays the role of whoever would answer WhatsApp while you are teaching.
Does it touch my calendar?
It books within the windows you left available. Whatever you block stays blocked.
Can I serve online and in-person students with the same agent?
Yes. You enter both formats and the agent explains the price and format according to what the student wants.
What happens when I have no time left in the week?
The agent says the week is full, offers the next open window and logs the student in the CRM, so you can reach out when space opens up.
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
In short
Lesson price, subjects covered and open time slots answered while you teach, with the first lesson booked and the contact saved in the CRM.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent