Discover OneSIM
OneSIM by eSIM io offers an eSIM valid worldwide with pay-as-you-go payment option
One eSIM valid in over 200 destinations
Pay‑as‑you‑go or choose a time-based data plan
io Balance never expires
Seamless Connection in Any Country You Visit
Why eSIM io?
This Is What Our Users Say
Murat_ksk85
Absolutely install
I am writing a review for an app for the first time. We used it in the US for 10 days, received 5G support throughout, and the price is very reasonable. I will use esim io for all my future travels. We activated it as soon as we landed at the airport, and I definitely recommend it.
Yasr Ylmz
Very comfortable
The eSIM is a wonderful application that is easy to obtain and install.
Julia Rodriguez
Thank you very much.
It's very helpful, thank you.
Zilla’s Travel
eSIM made Easy
Very refreshing interaction with the eSIM staff! Upcoming trip to the DR. Using eSIM is much easier than buying a different phone and international SIM card!
sonur26
I no longer have internet issues.
A nice app, you pay as you use, it's quite profitable in bulk purchases with gift balances.
Gln01’
eSIM internet connection
An expert in their field, I was incredibly happy with the resolution of my problem, thank you very much.
Yasin gürel
Very nice application
Very nice application. Most importantly, you have someone to talk to. They help with everything 24/7. It works very well.
Frankz Marroquin Palacios
BEST
Not only the best but EASIEST, FRIENDLIEST, TOP-NOTCH CUSTOMER SERVICE. Best choice ever, no doubt it's AWARDED.
Mvnh;(3567);
Convenience
I used eSIM io for the first time and I was very satisfied. It's both very EASY and very convenient, thank you very much.
Use eSIM io mobile app for a better eSIM experience.
To download the app, open your phone's camera and scan the QR code. The eSIM io mobile app offers a great experience for usage notifications and balance managing and tracking.
How Does eSIM io Work?
Download the eSIM io app
Pay as you go or purchase a plan
Top up io Balance to your account
Add OneSIM to your phone just once and do not remove it
Easily track your usage