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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Reviews shaping this summary
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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I was unable to use my kolet esim in…
I was unable to use my kolet esim in the USA, and service was slow and poor in the UK.
Very disappointing
1 August 2026
Reply from Kolet
Thank you for the feedback, and sorry to hear about the trouble with the US and UK plans. We looked into your account and want to help sort this out — we've reached out to you directly with more details. 😊
Reply from Kolet
Thanks for sharing your experience! We’re glad the price and roaming met your expectations 📶. You can turn any unused data into credits right now by opening the Kolet app, tapping the plan, then the three dots (⋯) to convert 💛.
Easy and great Internet price!
3 August 2026
Reply from Kolet
Glad you found our rates easy and great. Enjoy your travels! 🌍.
Good E-sim option
Thank you. The app is user-friendly and the e-sim worked well. Too bad I had booked more from OMIO but the codes for free data can only be used once upon registration.
3 September 2026
Reply from Kolet
Glad the app felt user‑friendly and the eSIM worked smoothly for you. It’s a shame the free‑data codes from OMIO can only be used once. If you need more data later, you can easily get another plan in the app. ✈️📶.
Reply from Kolet
Glad the app felt smooth for you. Enjoy your next adventure with reliable data 📡.
Reply from Kolet
We're thrilled you enjoyed the smooth user experience! 🌍 Thanks for sharing your thoughts, and we hope your next trips are just as easy. ✈️
Reasonable price
Reasonable price
Easy to use the app
You can reclaim unused data
Excellent on line costumers service
2 September 2026
Reply from Kolet
Thanks for highlighting the reasonable price and how easy the app is to use! We're glad you found the online customer service excellent. If you still have leftover data, you can convert it into credits right now by opening the Kolet app, locating your plan, and tapping the three dots (⋯). Enjoy staying connected wherever you go 🌎💛.
Reply from Kolet
Thanks for calling it top super! It’s great you found plenty of data to use. We appreciate the enthusiasm. 🗺️
Really easy and intuitive
Easy to use overall. I love the fact that i can convert my unused gb to credits.
1 September 2026
Reply from Kolet
It's great that the app feels easy for you. Glad you discovered the unused GB conversion to credits. If you ever have extra data, just tap the three dots (⋯) on the plan and select “Convert to credits”. Enjoy staying connected 🌍📱.
Fave Traveling App
Customer service is on point and the app is extremely easy to use! Faced an issue first time I used it and when I contacted them they directly solved it for me
1 August 2026
Reply from Kolet
So glad our support could jump in right away. It’s great to hear the app feels super easy for you. Thanks for the kind words 🚀.
Reply from Kolet
Delighted to hear you think the service is amazing! It's great that everything worked so smoothly for you. Enjoy your travels and feel free to reach out if you need anything else 🌍✈️.
Reply from Kolet
Glad you’re settling in comfortably in your room. If you need any data while you relax, the app is just a tap away 📱🌍.
Easy to use
Easy to use, only install once then buys data and use anywhere (some other eSIM providers require you to install a new eSIM every time) can convert unused data to credits towards next purchase. Highly recommend!
1 September 2026
Reply from Kolet
Glad you find the one‑time install super convenient! You can turn any leftover data into credits right now. Just open the app, locate your plan and tap the three dots (⋯) to convert. Enjoy seamless travel with your next purchase 🧳.
It’s been a great experience having…
It’s been a great experience having Kolet connecting me on this travel. I enjoyed el nido Palawan with a stable connection even in seas and in shores
1 September 2026
Reply from Kolet
Sounds like you had a smooth trip to El Nido, Palawan! The app kept your phone connected even on the sea and at the shore, which is fantastic. Keep an eye on data usage in the app so you can always stay online. Thanks for sharing your adventure 🌍.
Fast reliable internet in Ireland
Fast reliable internet in Ireland. Easy, reasonable prices to add more GB. Will use it again.
1 September 2026
Reply from Kolet
Great to hear the connection in Ireland was fast and reliable 🌍. Adding more GB was simple and affordable. Looking forward to your next trip.
Reply from Kolet
Glad to hear the calls are now a breeze with Kolet 📞. If you ever need anything else, just let us know 🗣️.
Is it very easy to use and it gives you…
Is it very easy to use and it gives you 2 gb free.
1 September 2026
Reply from Kolet
Setting it up is a breeze and you get 2 GB free instantly. Keep enjoying smooth data on the go! 🌍📶
Magnificent app with competitive prices…
Magnificent app with competitive prices & different very useful options
31 August 2026
Reply from Kolet
We're thrilled you find the app magnificent and the prices competitive. It's great to hear the variety of useful options fits your travel needs. Enjoy smooth connections on your next trips! 🌐
Reply from Kolet
Glad you found the app easy to use! If you still have data left, you can turn it into credits right now: open the Kolet app, locate the plan (active or expired), tap the three dots (⋯) and choose “Convert to credits”. Let us know if anything else comes up 🛸🌠.
Reply from Kolet
We're happy the app feels easy to use for you. It's great to hear the connection stays strong wherever you go! Enjoy your travels! 🎉 😄
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