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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Klook vs Viator Tours & Attractions

Klook 4.7★ · Free to download 65
Winner Viator Tours & Attractions
Viator Tours & Attractions 4.9★ · Free to download 80

Viator is the better choice for booking tours and activities due to its wider selection, generally positive booking experience, and more responsive customer support, despite some shared issues with third-party vendors.

Full reviews: Klook · Viator Tours & Attractions

Viator generally offers a smoother booking experience and a broader range of activities, making it a more reliable choice for travelers. Klook, while praised for its ease of use in specific regions, frequently struggles with customer support and booking accuracy.

Head to head

Features and Selection edge: Viator Tours & AttractionsR2R5R8R17
Klook Klook is praised for offering a wide variety of bookings, including eSIMs, hotels, and transport, making it a comprehensive travel tool, especially for trips to Japan and Korea R2R5R8R17. Users appreciate having all their bookings under one umbrella R2. However, some users find the recommendations for local activities to be limited or too far away .
Viator Tours & Attractions Viator is highly regarded for its extensive selection of tours and activities, both popular and off-the-beaten-path, across various international locations . Users find it easy to discover fun things to do in any city .
Ease of Use tieR2R4R5R8
Klook Many Klook users find the app convenient and easy to use for booking activities, especially in Asia R5R8R11R14. Booking eSIMs is also noted as easy R2. However, some find instructions for meeting points vague , hotel prices inaccurate , and the booking process confusing, leading to wrong dates or non-working tickets R4. There are also complaints about being forced to download the app for eSIMs if booked via website and forced marketing acceptance .
Viator Tours & Attractions Viator is generally considered easy to navigate and use for booking tours . Users appreciate the straightforward booking process and clear information . However, some users report issues with logging in , adding new payment methods , viewing past bookings , and linking online bookings to the app . The search function is criticized for not allowing filtering by specific areas and losing search results when viewing a tour . Payment system glitches are also reported .
Reliability and Accuracy edge: Viator Tours & AttractionsR3R4R6R7
Klook Klook's reliability is a mixed bag. Many users report successful and smooth bookings for tours and transport R8. However, a significant number of reviews highlight issues with non-working tickets R4, canceled bookings R7, incorrect time slots R3, inaccurate hotel availability , and transfers defaulting to wrong locations . Some bookings are described as a "coinflip" R6 and problematic when things don't go smoothly . There are also reports of being charged double the actual fare R10 or excessive change fees R13.
Viator Tours & Attractions Viator is generally seen as a reliable platform for booking tours, with many users reporting consistently good experiences over several years . However, there are notable instances of tours being canceled last minute , tour itineraries not matching the experience , and system glitches leading to double bookings or incorrect dates . Some users also report tour operators not showing up or abandoning guests .
Price and Value tieR10R11R13R14
Klook Klook is often perceived as offering good deals and being cheaper than other websites or official sources R11R14. Users report saving money on bookings R11. However, some reviews contradict this, stating that Klook charges double the actual fare R10, has insane mark-ups of 10-20% R18, or is more expensive than direct booking or other platforms . Excessive change fees of $50 are also a point of contention R13.
Viator Tours & Attractions Viator is generally considered to offer fair prices and good deals . Users appreciate the value for money, with some mentioning cash back rewards . However, some tours are criticized for not being worth the price, such as a dinner option on a steamboat . There are also instances where users felt they were overcharged, like an extra $15 for airport pickup that didn't fully deliver .
Customer Support edge: Viator Tours & AttractionsR1R3R13R16
Klook Klook receives overwhelmingly negative feedback regarding its customer support. Users describe it as "terrible" R1R31, "non-existent" , and having "zero accountability" R1. Complaints include slow response times R16, unhelpful chat bots R35, inability to reach agents R35, and lack of follow-up on issues R16R31. When issues arise, Klook is often unwilling to offer refunds R1R3R13R35 or provide resolutions . Some users feel scammed R35.
Viator Tours & Attractions Viator's customer service receives mixed reviews. While some users find the chat assistant helpful and customer service responsive , many others report significant issues. Common complaints include unhelpful support when problems arise , difficulty getting refunds when tours are problematic or missed due to unforeseen circumstances , and challenges in resolving booking changes . Viator is often seen as a facilitator that defers to the vendor for refunds, which can lead to no resolution . Some users also struggle to find direct support contact .
Pick Klook if

Pick Klook if you are primarily traveling in Asia, especially Japan, and are looking for a comprehensive app to book various services like eSIMs, transport, and hotels, and you prioritize convenience and potential cost savings for straightforward bookings R2R5R8R11.

Pick Viator Tours & Attractions if

Pick Viator if you want a wide selection of tours and activities globally, appreciate an easy booking process, and value a platform that generally delivers reliable experiences, even if customer support can be inconsistent for complex issues .

Evidence note: Both apps are free to download, so the free-vs-paid asymmetry is not a significant factor. Both apps face similar challenges with third-party vendors and customer support when issues arise, but Viator's larger volume of positive reviews suggests a higher overall satisfaction rate.

Frequently asked

Which app has better customer support?
Viator generally has better customer support, with some users finding their chat assistant helpful and customer service responsive, although many still report issues with refunds and complex problems . Klook, in contrast, is frequently criticized for terrible, non-existent, and unhelpful customer support with slow response times and a lack of accountability R1R16R31R35.
Can I get refunds easily if my booking has an issue?
Neither app guarantees easy refunds, especially if the issue is with the third-party operator or due to user error. Klook users frequently report being denied refunds for incorrect bookings, cancellations, or non-working tickets, sometimes incurring significant change fees like $50 R1R3R13R35. Viator users also struggle with refunds when tours are canceled or problematic, as the platform often defers to the tour operator for approval .
Which app offers better prices?
Both apps have mixed reviews regarding pricing. Klook is often cited for offering good deals and being cheaper than other sites R11R14, but some users found it to charge double or have significant mark-ups R10R18. Viator is generally seen as having fair prices and good deals, with some users even mentioning cash back rewards .

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R2] Klook 5/5 · US Easiest travel tool: Best eSIM experience and love all my hotel and travel bookings under one umbrella
  2. [R5] Klook 5/5 · US Great App!!!: This app is so convenient. I started using it 2 years ago when I went to Japan and I love the ease of booking things overseas. I used it again for my Korea trip that I just got back from. I love it!!!
  3. [R8] Klook 5/5 · US Klook: Klook everything and never look back. This app has it all. It is reliable and so easy. This app made Japan so accessible. Thank you, Klook
  4. [R17] Klook 5/5 · US Transport: Will always go Klook for transport booking
  5. [R4] Klook 1/5 · US Non working tickets: Get train tickets to Kyoto from Tokyo and the QR ticket didn’t work. Asked multiple workers and every gate didn’t scan it and denied us. Miss our train and another worker said to never use third party to buy tickets.
  6. [R3] Klook 3/5 · US non refunds offered: Klook offered up great ideas for excursions for my Japan trip. However-they sold me bullet train ticket at 7pm at night for a 9am train that same day that and i needed a 9pm train-why would you sell a ticket for a train for a time slot that already passed. I asked for a refund because I had to buy 5 more tickets for the right time for same amount and they refused to offer me a
  7. [R6] Klook 3/5 · US Tourist trap app: Using this is a coinflip on if your experience will be awful or good. They definitely filter out bad reviews some of the companies they use. This is just adding an unnecessary third party to booking an activity and they will not help you if you have a miserable experience. And point to the pages and pages long activity description and fine print. All of these companies they conn
  8. [R7] Klook 1/5 · US Worst app ever!!!: I booked a paragliding activity on this app and received a confirmation email from them. But when I actually showed up, the paragliding operator asked if my booking was made through Klook. They then told me the slots were full and canceled my order on the spot. This completely messed up my entire itinerary. Worst app ever!
  9. [R10] Klook 1/5 · US Charged us double the actual fare: We booked bullet train tickets only to find out we paid double and didn’t even get what was reserved.
  10. [R11] Klook 5/5 · US Easy to use!: Klook was helpful with many of my bookings and helped me save!
  11. [R13] Klook 1/5 · US Charged $50 change fee: Just buy train station. This app is rip off. I bought tickets for a week in advance and literally when I pushed the buy button I realized I picked the wrong date. Tried immediately to cancel / change. Charges $50 either way. Rip off scam. Just buy at train station for less money.
  12. [R14] Klook 5/5 · US Easy to use and more cheaper apps.: Very useful and easy to used top of that cheaper compared to the other websites.
  13. [R1] Klook 1/5 · US DO NOT USE KLOOK - TERRIBLE CUSTOMER SUPPORT WITH ZERO ACCOUNTABILITY: I booked an Alamo rental car at Newark Airport through Klook. When I arrived, the rental counter representative was rude and denied the rental, claiming that I needed international travel documents, even though I am a U.S. resident and did not have or require international travel documents for my trip. I was then told to contact
  14. [R16] Klook 1/5 · US Worst booking platform experience: Order issues are very difficult to resolve. Customer service takes a long time to connect and even longer to reply, maybe once every 3 minutes. The entire conversation takes about an hour, then they say they'll email an update, but I haven't received any reply in 7 days! · translated
  15. [R31] Klook 1/5 · US Terrible app no customer support: Terrible app with zero customer support the chat does not work and the email gets no response. There’s no benefit using the app because the companies are not able to to offer support for anything purchased through this app
  16. [R35] Klook 1/5 · US Terrible: I purchased two tickets to Gardens By The Bay with instant confirmation only for tickets never to come through. Because it was day of, the app would not let me cancel. The chat bot was of no use, every time I asked to call an agent the app indicates that service was unavailable. Basically stole $100 from me.
  17. [R18] Klook 3/5 · GB These guys are making big Mark-up: Very convenient but the markup is insane. 10-20% per ticket which is unheard of. With a bit of research you can go around that

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store