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Built on 30 years of hotel PMS, POS & back-office systems across Southeast Asia

Stop missing guest messages. GuestBrain replies — in any language, in seconds. Free.

Hotel operators use GuestBrain to manage guest messages 24/7 via WhatsApp and LINE — without adding workload to staff.

See how it works

Setup in 10 minutes · No credit card needed

GuestBrain via WhatsApp
Riverside Hotel Bangkok
Live
Your guests message at 2 AM.
Your staff reads it at 8 AM.
That's 6 hours of silence — and a bad review.
Hotel front desk staff using phone at night 11pm. One person at the desk. Google Translate open.

Guests in 14 languages. Staff in 1.

International guests — often your highest-spending — send messages in languages your front desk can not respond to quickly or accurately.

Missed messages = missed upsells = lost revenue

Every unanswered pre-arrival message is a room upgrade, spa package, or airport transfer that never gets offered.

Slow replies = low review scores = lower OTA ranking

The guest who waited 6 hours for a response will remember that when writing their review. OTA algorithms notice the drop.

How GuestBrain Works
GuestBrain manages every guest message — in their language, at any hour, for free.
1
Guest Books
Confirmation sent automatically in the guest's language via WhatsApp or LINE
2
Pre-Arrival
Upsells and info delivered before the guest arrives — upgrades, spa, transfers
3
During Stay
Questions answered 24/7 — only escalates what needs a personal touch
4
Post-Stay
5-star review requested at the right moment, in the right language
0
Always-on response
Any
Language supported
Free
No cost, no card
0
Setup time
Why hotels trust us
Built by hotel tech veterans, with 30 years of experience in hotel operations.
"I have designed and implemented PMS, POS, and back-office systems for hotels across Southeast Asia for 30 years. GuestBrain is the product I wished existed every time I saw a front desk struggling with multilingual messages at night."
PM
Peak Malakul
Founder, StayHQ
What you get in the free pilot:
✓ Full GuestBrain setup on your WhatsApp & LINE
✓ Knowledge base configured with your hotel info
✓ Multilingual replies in any guest language
✓ Pre-arrival upsell sequences
✓ Complaint detection & staff alerts
✓ We set it up, run it, and tune it for you
Now accepting pilot hotels:
• Independent hotels, 40–100 rooms
• Thailand (Bangkok, Phuket, Chiang Mai, Pattaya, Koh Samui)
• International guest mix (JP, KR, ZH, DE, EN)
• Using WhatsApp or LINE for guest messaging
3 pilot spots remaining
Simple Setup. Revenue from Day One.
We set it up. GuestBrain runs it. You collect 5-star reviews.
01

We connect your inbox

Link your PMS or export a guest list. We configure WhatsApp, LINE, languages, and your brand voice. Takes about 10 minutes.

02

GuestBrain learns your property

Your policies, your tone, your upsell catalogue. Every reply sounds like it came from your best concierge — in any language.

03

Guests message. GuestBrain replies.

You review the logs when you want. GuestBrain manages the rest — 24/7, in any language, with no manual work required.

Cancel anytime · No commitment

Ready to stop missing messages?
Setup in 10 minutes. No credit card required.

3 pilot spots remaining · No commitment · Cancel anytime