Yesim is one of those rare eSIM services that actually makes traveling easier instead of more complicated. Setup is fast, activation is straightforward, and the internet just works — no airpor... See more
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
I used Yesim based on positive reviews I'd seen here and some other platforms. I was a bit apprehensive, as I hadn't used an app like this before or e-sim for a limited amount of time. I was traveling... See more
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Yesim has become an essential app for my trips. I love being able to activate an eSIM before I even land and have internet access right away. The connection is reliable, the speed is great, and the pr... See more
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Easy to purchase, easy to install, easy to use and - most important - usable quick and everywhere. Using yesim for my travels abroad (Switzerland, Carribeans) for about a year now and will stick t... See more
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Company details
About Yesim
Written by the company
Yesim is a pioneering eSIM solution that enables seamless connectivity across the globe. Founded on June 1, 2019, Yesim has established itself as a leading provider of innovative mobile solutions. The main products include eSIMs with unlimited data in Europe, the United States, Turkey, Asia Pacific and 200+ total destinations.
As an active company, Yesim is committed to staying at the forefront of technology, offering its smart eSIM app to connect users to the best cellular networks in over 200 countries worldwide. Whether you're a casual traveler, business professional, or adventure-seeker, Yesim is the perfect companion for staying connected on-the-go.
Key Highlights
Contact Us
Headquarters
Yesim offices are located in Switzerland, the UAE, and Europe
Stay connected with Yesim and discover the freedom to roam without boundaries.
Key Highlights
- Over 200 countries covered worldwide
- Smart eSIM technology for reliable and efficient communication
- User-friendly app for easy connection management
- High-speed Internet access worldwide
- Virtual numbers
- Unlimited data plans and a wide range of regional solutions, including a special “Business Destinations” option
- Secured connection and variety of top-up payment methods from bank transfers to crypto payments
- No need for a plastic SIM card or an overpayment for roaming
- 100% Money Back Guarantee
Contact Us
- If any issues bother you, just text our support: support@yesim.app
- Business and collaboration: b2b@yesim.app
- General issues, questions: info@yesim.app
- If you need personal assistance you may read more here: SUPPORT PAGE or FAQ
- To stay tuned for more Yesim news, follow us on Facebook, Instagram, X(Twitter) and LinkedIn
Headquarters
Yesim offices are located in Switzerland, the UAE, and Europe
Stay connected with Yesim and discover the freedom to roam without boundaries.
Contact info
Chamerstrasse 172, 6300, Zug, Switzerland
- support@yesim.app
- yesim.app
4.3
Excellent
3k reviews
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Reply from Yesim
We strive to do our best for you! Thank you!
Very efficient and user friendly…amazing system
Very efficient and user friendly system!! Truly amazing
1 February 2026
Unprompted review
Reply from Yesim
Thank you for considering us! It is a great pleasure to see that people have enjoyed our service!
Great customer service
The customer service is absolutely impeccable, I bought the wrong allowances and they resolved it quickly and without any hassles. 100% recommend!
1 February 2026
Unprompted review
Reply from Yesim
Our support team is available 24/7 to ensure you receive the best service at all times! Thank you!
The most helpful service in all over…
The most helpful service in all over the world
1 February 2025
Unprompted review
Reply from Yesim
We're glad you liked our service! Stay connected with Yesim =)
Good eSIM app
Good eSIM app. The mobile service that i got was pretty neat, so no complaints there. Just that, I didn’t get the joining bonus amount for high they had promised. I communicated with them but to no avail so far.
30 January 2026
Reply from Yesim
Thank you for your review! We're delighted to hear that you enjoyed using our app.
I do recommend this provider.
Got an unlimited coverage to travel in USA for 7 days and it worked fantastically.
I had an issue with the activation link and the customer service has been EXCELLENT.
There is an app that you can install for easy access to all tools.
Very reasonable price for a top performance. I do recommend this provider.
20 January 2026
Unprompted review
Reply from Yesim
We strive to make our support the best for you! Thank you for noticing!
It is very helpful when you r…
It is very helpful when you r travelling in different countries
30 January 2026
Reply from Yesim
Thank you! Our main goal is to provide you with high-quality connection and coverage worldwide!
Non-functional service – no refund
I paid 42 EUR for a YESSIM eSIM that never worked at all. The eSIM could not be used despite following all activation instructions. No service was provided.
I requested a full refund, but so far the issue has not been resolved. Payment was successfully completed, but the service was completely non-functional.
Order ID: 76d3d4940df36248a51aedd6f798c7c43031
Payment ID: 20160010177197
Based on my experience, this service is unreliable. I do not recommend YESSIM.
22 January 2026
Unprompted review
Reply from Yesim
We apologize for the inconvenience! We saw your support request, but after we responded the same day, you did not continue the conversation. Our support team is still awaiting your response so we can resolve your situation as efficiently as possible. Please return to the chat, and we'll either make sure everything works or issue a refund.
Reply from Yesim
Thank you! We'll continue to delight you with excellent service and ease of use!
Reply from Yesim
Thank you for your feedback! Our support team is available 24/7 and can help you configure your connection to ensure the highest and most stable speeds available from your local carrier. Please feel free to contact them directly in the app or at support@yesim.app.
€29 minimum activation charge for Pay&Fly ??? Never!…
After hearing being recommended from a friend who had used YESIM, I signed up for YESIM. I tried to buy Pay&Fly option and it demanded €29 to Activate.
My friend who recommended YESIM in 2025 could activate Pay&Fly for only €10.
I will NEVER pay €29 to “test” a service that I read had negative reviews about its roaming performance.
26 January 2026
Unprompted review
Reply from Yesim
We're sorry you weren't happy with the prices, but we do have plans for half a euro for testing. With Pay & Fly, you don't pay for "activation"; you top up your balance with the amount you'll actually use—you won't have any lost gigabytes or unused data.
Pay & Fly is an option our users have been using for years, and it includes full coverage in over 170 countries worldwide. It's convenient to keep it as a backup SIM card, ensuring you'll have coverage virtually anywhere with just one eSIM.
A few negative reviews are an inevitable part of a product for a company with several million users, especially considering that sometimes these reviews are left by people who haven't used the product.
The esim i bought never worked
It logged on the operatori, put the roaming mode on, but no data at all. Money wasted
26 January 2026
Reply from Yesim
Sorry to hear about your experience! If you have any problems activating your eSIM, please feel free to contact our support team directly in the app or at support@yesim.app. They respond within a few minutes and will help you set up your connection at any time.
Staying reachable during the trip was…
Staying reachable during the trip was important. Emails, messaging, and a couple of calls worked fine while on the move. Would recommend 100%
23 January 2026
Reply from Yesim
Thank you for choosing and recommending us!
Inconsistent Policy Application - Disappointed
I’ve been a Yesim customer and had both positive and negative experiences.
Previously, the support team was helpful and converted my unused data to Ycoins, which I appreciated. However, when I requested the same service for my remaining 6GB of data from my Iraq eSIM plan (expiring Feb 2026), they refused - despite having done this exact conversion for me before.
The inconsistency in applying their own policies is frustrating. If conversions are possible sometimes, they should be available consistently. Customer service should not depend on which representative responds.
I cannot recommend Yesim until they standardize their policies and treat all customers fairly.
25 January 2026
Unprompted review
Reply from Yesim
We apologize for any disappointment caused! Please contact our senior manager at complaints@yesim.app and tell us more about your support situation! We'll do everything we can to resolve the situation as fairly as possible.
Reply from Yesim
We strive to make our support the best for you! Thank you for noticing!
Best application for internet abroad.
Best application for internet abroad.
25 January 2026
Unprompted review
Reply from Yesim
Thank you for your review! We're delighted to hear that you enjoyed using our app.
A perfect choice for our travel
The app was easy to download, and to install eSIM and use for our trip in South America
24 January 2026
Unprompted review
Reply from Yesim
We're glad you like our service! We're truly committed to making connection more accessible and easier!
Great app with easy use
Great app with easy use! Super fast Support! 😍
24 January 2026
Unprompted review
Reply from Yesim
Our support team is available 24/7 to ensure you receive the best service at all times! Thank you!
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