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Sembang · WhatsApp customer service, SEA-flavoured

Reply to every WhatsApp enquiry. In your customer's language.

AI handles the first message in Manglish, Bahasa, or Mandarin-mix. When the lead gets hot, your team takes over. No more missed enquiries at midnight, no more agency reply templates that scare customers off.

Start free 14-day trialContact us on WhatsApp

200 replies free · no card needed · RM 149/month after trial

A
Aisyah
online
bro got promotion ah for the 1.5hp inverter one
Got — until end of month for the Daikin and Panasonic 1.5hp inverter. Daikin RM 1,899 installed, Panasonic RM 1,749. You looking for one unit or whole house?
just one for bedroom. installation include?
Yes installation included, standard piping up to 3 metres. If your unit is on the second floor or piping more than 3m, additional charge. Want me to check your address?
Buying signal detectedHanded to Aiman →

It's 9.47pm on a Saturday. You have 23 unread WhatsApps.

Most are tyre-kickers. Three are real. One is a customer ready to pay if you reply in the next ten minutes.

You either answer everything yourself, hire someone who can't tell the difference, or pay an agency RM 3,000 a month to send replies in awkward English at 2pm on Monday.

None of these are good.

Three steps. That's the whole product.

01
Customer messages

Your existing WhatsApp Business number. No new app for them to download. They write the way they always write — Manglish, Bahasa, Mandarin, whatever.

02
Sembang qualifies

It asks the right questions in the same language. Pain points, budget hint, urgency. It doesn't pretend to be human — it just doesn't sound robotic either.

03
You close

When the lead shows buying signals, Sembang hands the chat to a human teammate with a one-paragraph brief. You walk in already knowing what they want.

Your customers don't speak textbook English. Neither does Sembang.

Most chat tools were built for English-only support tickets. Sembang was built for the way SEA actually messages — code-mix, particles, voice-note energy in text form.

C
Customer
online
bro got promotion ah for the 1.5hp inverter one
Got — until end of month for the Daikin and Panasonic 1.5hp inverter. Daikin RM 1,899 installed, Panasonic RM 1,749. You looking for one unit or whole house?
just one for bedroom. installation include?
Yes installation included, standard piping up to 3 metres. If your unit is on the second floor or piping more than 3m, additional charge. Want me to check your address?

Sembang knows when to shut up.

Most AI chat tools try to close the customer themselves. SEA buyers can smell that from one message away. Sembang's job is to qualify, not to close.

It listens for buying signals — specific budget mentioned, urgency words, asking about delivery or contract terms. The moment one fires, it hands the conversation to a human teammate with a one-paragraph brief: who they are, what they want, what they're worried about. Your salesperson opens the chat already three steps in.

“The first version tried to close. Customers ghosted. We rebuilt it to hand off earlier and conversion went up.”
— Felix Choo, Stelix Media
D
Daniel
online
if I sign up today how soon can we start?
Got it — that's a real question for our team to handle properly. Aiman handles onboarding, he'll WhatsApp you in a sec.
Buying signal detectedHanded to Aiman →

One plan. No surprises.

Start with a free 14-day trial — 200 replies, no card needed
Sembang Starter
RM 149
per month, after trial
  • ✓ 2,000 AI replies per month (voice + text)
  • ✓ Voice-message transcription included (Cantonese, Mandarin, Bahasa, Manglish)
  • ✓ 1 WhatsApp number
  • ✓ Up to 3 team members
  • ✓ Custom brand voice + reply samples + persona override
  • ✓ Inbox + escalations + history + Slack handoff
  • ✓ Top-ups available if you need more (RM 30 / 200 replies)
Start free trialContact us

Sign in with Google to create your workspace. We only ask for a card when you subscribe — and you can cancel anytime from the dashboard.

Common questions

Will Sembang take over my existing WhatsApp number?+
No. It connects through Meta's official WhatsApp Cloud API alongside your number. Your customers see the same number they always have, and your team still has full inbox access.
What languages does it actually handle well?+
Today: English, Bahasa Malaysia, Mandarin (simplified), and the natural code-mix between them — Manglish, Bahasa-rojak, Mandarin-Singlish. Bahasa Indonesia and Vietnamese are next, planned for Q3 2026.
What happens to my customer's data?+
Conversations are stored in our infrastructure (Singapore region, hosted on Google Cloud) and used only to operate your account. We don't sell data, train public models on it, or share it with other Sembang customers. Full data export and delete on request.
Can a customer opt out of talking to the AI?+
Yes — if a customer says any variant of 'talk to a human', Sembang routes immediately and silences itself for that thread for 24 hours. You can also flag any customer as human-only forever.
Does it work with my existing CRM?+
At launch we support webhook out — pipe leads to anything that takes a webhook (HubSpot, Notion, Google Sheets, Pipedrive). Direct CRM connectors come after Phase 2.
What does it cost compared to hiring someone?+
A part-time customer service hire in KL is RM 2,500–3,500/month before EPF and KWSP. Sembang is RM 149/month and runs 24/7. The honest version: it's not a replacement for a senior salesperson, but it replaces the first-touch coverage of one or two junior staff.

Stop losing the 9pm enquiries.

Set up in 10 minutes. Sembang answers in your customers' language, your team takes over when the lead gets hot.

Start free 14-day trialContact us first

200 replies free · no card needed · RM 149/month after trial