Quick answer: Klook is an app-first marketplace for tickets, transport, passes and activities, strongest in Asia. You book and pay in the app; most products arrive as a QR code or voucher instantly; some are redeemed at a counter; many tickets are open-dated within a validity window. Each product carries one of three cancellation tiers — free, conditional or non-refundable — and you earn Klook credits on bookings and reviews. It is excellent for logistics; for guided tours, compare with Viator.
Related: How Does GetYourGuide Work? (2026)
What Klook Sells
Attraction tickets, theme parks, observation decks, rail passes and train tickets, airport transfers and express trains, eSIMs and Wi-Fi, car rental, multi-attraction passes, and tours. Coverage is deepest in Japan, Korea, Taiwan, Hong Kong, Singapore, Thailand, Malaysia and Vietnam, and growing in Europe, Australia and the US.
Top-Rated Bangkok Tours & Experiences on Viator
Booking
Search a destination or product, choose the package (Klook lists variants — adult/child, with/without add-ons, time slots), pick a date or select an open-dated option, apply any promo code or credits, and pay by card, PayPal or a local wallet. Confirmation is usually instant; some products confirm within hours.
Tickets and Redemption
Most tickets are QR codes stored in the app, grouped by date, usable offline. Read the “How to use” section: some attractions scan the Klook QR directly, others require exchanging the voucher for a physical ticket at a counter (bring ID). Open-dated tickets must be used within the validity period shown.
Cancellation
Every product shows a tier: free cancellation before a deadline, conditional cancellation (fee or conditions), or non-refundable. Cancel via the booking’s “Apply for refund” button. Details: Klook cancellation policy.
Credits and Codes
Credits are earned on bookings and reviews and spent at checkout; promo codes come from the in-app promo page, bank partnerships and campaigns, each with conditions. See Klook promo codes and deals.
Support
In-app chat is the fastest route; email is slower; phone support exists in some markets. For on-the-day issues with a tour, the supplier contact on the voucher is the first call.
Is Viator Better for This?
For guided tours, day trips and anything where the operator’s quality matters, Viator typically offers more operators with more reviews (the Bangkok examples above), one simple 24-hour free-cancellation rule and 24/7 phone support. For Asian tickets, rail and theme parks, Klook is usually cheaper and better stocked. Using both is normal. Compare: Viator vs Klook; read how Viator works. Related: Is Klook legit?. Destinations: Bangkok, Chiang Mai, Hanoi.
Frequently Asked Questions
Do I need the Klook app?
The website works, but the app is where QR tickets, credits and most promo codes live, so it is the better way to use Klook.
Are Klook tickets instant?
Most are delivered instantly as QR codes; some products are confirmed within hours and some require counter redemption.
What is an open-dated Klook ticket?
A ticket valid on any day within a stated period rather than a fixed date. It must be used before the validity ends.
Can I cancel a Klook booking?
Depends on the product’s tier: free cancellation before its deadline, conditional with fees or conditions, or non-refundable.
Does Klook work outside Asia?
Yes, with growing coverage in Europe, Australia and the US, but the selection is smaller than in Asia.
Klook or Viator for tours in Thailand?
Klook for tickets and transfers; Viator for guided tours and day trips with more reviews. Many travellers use both.
Kratos Review is reader-supported. We may earn a commission when you book through links on this page, at no extra cost to you. Prices and policies were checked on 28 September 2026 and can change.
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