I used a Kolet e-sim (USA) twice in the past year. It is super easy to install and worked immediately upon arrival which the touch of a few buttons. The remaining data from my first e-sim was conver... See more
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Review summary
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Amazing app, it has all the features that any travel might need - unlimited plans and data plans and you can convert whatever you don t consume for a future trip. Not to say their customer care team... See more
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Was given complimentary data with a Corendon flight to Turkey and was very useful when I first arrived. Have since purchase more data and at a really good price. There are lots of esims but many don't... See more
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It was the first time I have used the e sim function on the mobile. Air France provided a 2 day trial of Kolet whom I had never heard of before. Wonderful discovery as it made communication in Switze... See more
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Company details
About Kolet
Written by the company
Travel smarter with Kolet eSIM
Stay connected in 190 destinations with one travel eSIM. Activate in less than 2 minutes, avoid roaming fees, and get online as soon as you land.
Kolet makes mobile data abroad simple: install once, use across trips, top up anytime.
190 destinations • No hidden fees • Plans from €3.99 • 24/7 support
Why travelers choose Kolet
- One eSIM for 190 destinations
- No roaming charges or hidden fees
- Unused data rollover for future trips
- Real-time data tracking in app
- Transfer data to friends and family in seconds
- 24/7 support from real people
How it works
- Download Kolet app
- Choose plan for your destination
- Install your eSIM
- Activate on arrival and connect instantly
Popular destinations
Learn more at kolet.com.
Contact info
Paris, France
- help@kolet.com
- kolet.com
Welcome offer
4.7
Excellent
2K reviews
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Works perfect in a country what…
Works perfect in a country what sometimes is difficult to have access to internet. I’m very pleased with this and will use it more often.
July 4, 2026
Reply from Kolet
Glad to hear it works perfectly even where getting online can be tough. It's great that you're planning to use Kolet more often. 🌍📶.
Great service and I love that I could…
Great service and I love that I could return unused data for later!
August 27, 2026
Reply from Kolet
Thanks for the kind words! We're happy you could easily convert leftover data into future credits. It’s great that the feature saved you money for your next trip. 🌍✈️
Reply from Kolet
Happy to hear you found Kolet easy to use and practical. Your efficiency boost is exactly what we aim for! 🌍✈️
I signed up for Kolet through a KLM…
I signed up for Kolet through a KLM promotion and was pleasantly surprised by how well it worked. I used it in Serbia and Poland and experienced no issues whatsoever. Reliable, straightforward, and great for travelers who need dependable mobile data abroad.
July 22, 2026
Reply from Kolet
What a great find! Signing up through the KLM promotion sounds like a smooth start. We're glad Serbia and Poland gave you flawless coverage. Enjoy the reliable, straightforward service on your next adventure. 🌐✈️
Reply from Kolet
Glad you found it easy and perfect for the price. Enjoy your travels! 🌟🗺️
Reply from Kolet
We're thrilled you found the service reliable. It's great to hear the connection stayed strong for you 📡🧭.
I used a Kolet e-sim (USA)
I used a Kolet e-sim (USA) twice in the past year. It is super easy to install and worked immediately upon arrival which the touch of a few buttons. The remaining data from my first e-sim was converted into credits, that made my second use free! Excellent service
August 19, 2026
Reply from Kolet
Thanks for sharing how easy the USA e‑sim was to set up! It's awesome that the leftover data turned into credits and covered your second trip 🌍. If you ever have more unused data, just open the app, tap the three dots on the plan and convert it to credits 📱.
Reply from Kolet
We're glad it stayed connected across three different countries. 🎉 Travel should always be this smooth! 🏖
It works like it should
It works like it should. Is easy to extend and price is right.
September 3, 2026
Reply from Kolet
Glad you found extending the plan a breeze and the price just right. 🌏 It's great to hear everything works as expected. Let us know if you need anything else!
Worked fine but cheaper options…
Worked fine but cheaper options available with same quality.
July 19, 2026
Reply from Kolet
Glad to hear things worked well for you! 😊 Price is definitely something we think about a lot — we're constantly working to offer the best possible value in the market, and we've recently reviewed and lowered the prices of several of our plans. We've also sent you a direct message with a few more details. 🙌
Kolet was great
Kolet was great simply because I didn’t have any problems and didn’t even notice it because Kolet was perfect during my South American trip
March 22, 2026
Reply from Kolet
Thank you for sharing your experience. I'm thrilled you had zero problems and that Kolet blended perfectly into your South American trip 🤩. Looking forward to keeping your travels hassle‑free.
I love it
I love it! It saved me a lot of money and especially as first two days are free. Thanks a lot!
August 17, 2026
Reply from Kolet
We're thrilled you enjoyed the free two‑day trial and the savings it gave you. It's great to hear the app fit your travel needs so well. Thanks for the kind words! 🎉
Highly recommended
Great company. Super practical e-sims with a very user-friendly interface
September 3, 2026
Reply from Kolet
We're glad you found the e‑sims practical and the interface so user‑friendly. It’s great to hear the app feels smooth for setting up your travel data. 🌍✈️
I purchased the 365 day global eSIM and…
I purchased the 365 day global eSIM and no matter what country I travel to the eSIM works perfectly - very happy with the results
May 3, 2026
Reply from Kolet
Thanks for choosing the 365-day global eSIM and seeing it work flawlessly wherever you go. It's great to hear you're happy with the results 🌍. If you ever need a hand, our support is just a tap away 📱.
Easy to handle
Easy to handle, easy to install, good connection in other countries with different mobile-net
August 24, 2026
Reply from Kolet
We're happy you found the setup simple and quick. It's great to hear the connection stays solid when you hop between different mobile networks abroad 🗺️. Enjoy smooth browsing on your travels! 💛
Love this eSIM
Very easy to use and absolutely love the credits for unused data!! Would get 5 stars if unused donated data could also generate credits instead of being lost for nothing. Otherwise very good eSIM option!!! Best I’ve tried
July 24, 2026
Reply from Kolet
Thanks for noting how easy the app is and for loving the credits from unused data. If you still have leftover gigas, you can turn them into credits right now by opening the Kolet app, finding the plan and tapping the three dots (⋯) 🏝. We appreciate your suggestion about converting donated data into credits and have recently lowered prices across many destinations, so you get even more value 🪐.
It was very easy to get connected
August 2, 2026
Reply from Kolet
We're so glad to hear you had a smooth connection experience! We were curious about the rating though, so we've reached out to you directly to learn more about your experience. 😊
Really simple to set up
Really simple to set up, ideal for the holidays so I knew exactly what data I used and didn’t have to worry about running up a huge bill!
August 10, 2026
Reply from Kolet
It’s great to hear the setup was a breeze for your holidays. Knowing exactly how much data you used takes the stress out of budgeting. Enjoy the peace of mind and happy travels! 🌍✈️
Reply from Kolet
Glad to hear the connection feels solid and the speed is high 🚀. If you ever need anything, our support is just a tap away 🤝.
Reply from Kolet
Thanks for sharing how smooth the experience was! We're glad you found the app very good and easy to use. Enjoy your travels and keep the connection going 🌐🏞.
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