Skip to main content
heedium
Try free

Early access is open for businesses in Vietnam

Heedium, the AI chatbot that answers customers straight from your documents

AI that listens and answers your customers 24/7 on your website and Zalo OA. When your documents do not cover a question, the bot says it does not have that information instead of guessing.

Start free trialSee how it works

No card needed · One line of code on your website

Want to try it now? Click the chat bubble in the bottom right corner.

Chat on the Sao Mai English Center website: a customer asks about the IELTS 6.5 course fee and the AI assistant answers from the fee table.
Sao Mai English Center
AI assistant · replies instantly
Hi, how much is the IELTS 6.5 course?
The IELTS 6.5 course runs 12 weeks and costs 6,900,000 VND, payable in 2 installments. Evening classes are Mon, Wed and Fri, 6:30 to 8:30 pm.
When does it start?Leave my phone number
Type a question…
Heedium dashboard, visible to the owner only: the answer with its source passage in tuition-fees-2026.pdf, page 2.
Dashboard · owner onlySourced
Source of this answer
tuition-fees-2026.pdf · page 2
IELTS 5.5 · 10 weeks · 5,400,000 VND
IELTS 6.5 · 12 weeks · 6,900,000 VND · 2 installments
Schedule: Mon, Wed, Fri evenings, 6:30–8:30 pm
3Knowledge gaps: “Do you offer a shuttle bus?”

An AI chatbot that answers from your documents and never guesses

Heedium's bot is built to use only the price lists, policies and FAQs you give it. When a question is not covered, it says it does not have that information instead of guessing.

  1. No information? It says so

    The bot tells the customer it does not have that information and shares your business's contact number, instead of making up an answer.

  2. Missing answers land in Knowledge gaps

    Every question the bot could not answer goes on a list. Write the answer once and the bot answers it next time.

  3. Check every answer in the dashboard

    Each answer comes with the exact passage it used: file name and page. Only you see the source; customers do not.

A customer asks about a shuttle bus; the AI assistant says it has no information and gives the center's phone number.
Sao Mai English Center · AI assistant
Does the center have a shuttle bus for students?
Sorry, I do not have information about a shuttle bus yet. Please call 0901 234 567 and the center will help you directly.
Knowledge gaps in the dashboard: questions customers asked that your documents do not cover.
Knowledge gapsDashboard
Do you offer a shuttle bus?Asked 2 times · on the website and Zalo OA
Write an answer
Is the first trial class free?Asked once · on Zalo OA
Write an answer
Are there weekend classes for working adults?Asked once · on the website
Write an answer

A Zalo OA chatbot that trials next to your staff before going live

On Zalo OA, the bot drafts a reply to every message without sending it. Your staff reply as usual. Heedium compares the two replies and scores how often the bot is right.

  • Customers never see the bot's drafts
  • Staff keep working the way they do
  • You decide when it goes live
Example comparison in shadow mode: customer message, staff reply, bot draft and score.
Customer messageHow much is IELTS 6.5?
Staff reply6.9 million, you can pay in 2 parts.
Bot draftThe IELTS 6.5 course costs 6,900,000 VND, payable in 2 installments.
Result: Match
Customer messageWhat time are the evening classes?
Staff reply6:30 to 8:30 pm, Mon/Wed/Fri.
Bot draftEvening classes are Mon, Wed and Fri, from 6:30 to 8:30 pm.
Result: Match
Customer messageIs there a discount for a group of 3?
Staff replyGroups of 3 get 10% off.
Bot draftSorry, I do not have information about group discounts yet.
Result: Knowledge gaps
Illustration · Sao Mai English Center in shadow modeGo live

Launch a chatbot for your website and Zalo OA in 3 steps

One set of documents for both. Edit it once and your website and Zalo OA answer with the new content.

  1. Add your documents

    Upload PDF, Word or Excel files, or paste a website link or a public Google Sheet. Heedium reads the whole site through its sitemap and can sync daily or weekly if you turn it on.

    • Text PDF
    • Word .docx
    • Excel .xlsx
    • Website via sitemap
    • Public Google Sheet

  2. Test and verify

    Ask the bot yourself in the dashboard and see the source of every answer. On Zalo OA, let it trial next to your staff to see how often it is right.

    IELTS 6.5 fee?Sourced
    Shuttle bus?Knowledge gaps

  3. Go live on your website and Zalo OA

    Paste one line of code into your website to show the chat, then connect Zalo OA. No coding needed.

    <script src="…/widget.js" data-bot-id="pk_…" async></script>
    WebsiteZalo OA

Customer care automation that comes with the chatbot

The bot handles most repetitive messages. When a customer needs a person, the conversation is handed over with enough context that nobody has to ask again.

Hand over to staff when a person is needed

When a customer taps Talk to a person or types a keyword you set, the conversation moves to the staff inbox with a summary. Your staff get the picture at a glance.

Example staff inbox: a handed-over conversation with a summary of what the customer needs and their phone number.
Staff inboxCustomer wants an advisor
Summary by the bot
Lan asked about the IELTS 6.5 course, wants an evening class and is deciding between paying at once or in 2 installments. She left her phone number.
Take conversationView all messages

  • Collect phone numbers in the chat

    Customers leave their number while they ask. You get an email or webhook notification to call back in time.

  • A report every Monday morning

    Last week's conversations, how many the bot handled alone, and the questions to fill in.

  • Vietnamese or English

    The bot replies in the customer's language, handy for centers with foreign students and parents.

  • Suggested questions and answer ratings

    The chat suggests common questions. Customers can like or dislike each answer.

  • A team account with the right permissions

    One account for the whole team, with owner, admin, agent and viewer roles.

  • Need another feature?

    Heedium is in early access. Your feedback decides what we build next. Join the trial

A chatbot for English centers, online shops, clinics and spas

Best for businesses that get the same questions about prices, schedules and policies again and again, especially on Zalo.

Languages · IT · Test prep

Training centers

  • How much is the IELTS course?
  • What time are evening classes?
  • When does it start?

Online sales

Online shops

  • How much is shipping to Da Nang?
  • How many days do I have for returns?
  • Do you offer cash on delivery?

Healthcare

Clinics

  • What are the clinic's opening hours?
  • What does the general check-up include?
  • Do I need to book ahead?

The bot only answers service information from your documents; it gives no medical advice.

Beauty

Spas and beauty salons

  • How many sessions are in the skincare package?
  • Are you open on weekends?
  • Is there motorbike parking?

Frequently asked questions about AI customer chatbots

Cannot find your question? Email us at info@heedium.com.

Can the AI chatbot give wrong answers?

Heedium is built to answer only from the documents you give it. When a question is not covered, the bot says it does not have that information, shares your contact number and adds the question to Knowledge gaps. Like any AI, it can still get things wrong, so ask it a few questions and check the passage it used for each answer in the dashboard before putting it on your website or Zalo OA.

Does the Zalo OA chatbot reply to messages on its own?

Yes. Once Zalo OA is connected and switched on, the bot replies to messages 24/7. You can trial it first: the bot only drafts replies, your staff reply as usual, and the system scores how often the bot is right.

Do I need to code to add the chatbot to my website?

No. You paste one line of code into your website, the same way you add an analytics tag. Whoever manages your website can do it in a few minutes.

Which documents does the chatbot learn from?

Text PDFs (scanned image PDFs cannot be read yet), Word .docx, Excel .xlsx, website links (Heedium reads the whole site through its sitemap) and Google Sheets shared so anyone with the link can view. During the trial you can sync websites and Google Sheets daily or weekly. Your website and Zalo OA share one set of documents.

What if a customer wants to talk to a person?

On the website, the customer taps Talk to a person. On both the website and Zalo OA, they can type a keyword you set, such as “talk to staff”. The conversation moves to the staff inbox with a summary of what the customer asked. Questions the bot could not answer go to Knowledge gaps for you to fill in.

Do customers know they are chatting with an AI?

Yes. The website chat says clearly that it is an AI assistant. On Zalo OA, the bot's first reply each day, and its first reply after a staff member has just answered, adds a line saying it is an automatic message from an AI assistant and how to reach a person. Document sources only show in your dashboard; customers do not see them.

Can the chatbot answer in English?

Yes. The bot replies in Vietnamese or English, matching the language the customer writes in.

Does the Heedium trial cost anything?

No. Every account gets a 14-day trial with no card needed, and it never switches to a paid plan on its own. Heedium is in early access and is not charging yet. We invite businesses to try it and share feedback to make it better.

Do questions the bot cannot answer count toward the limit?

No. When the bot answers “no information” because your documents do not cover the question, it does not count toward your monthly answers. The question goes to Knowledge gaps so you can add to your documents.

Answer customer messages automatically 24/7, starting from the documents you already have

Heedium is in early access. We invite businesses to use it free and share feedback so we can make it better together.

Start free trial

No card needed