Amazing service
Highly recommend one sim, its cheap and very trustworthy
👌
🫶🥰
Also
Perfekt
Mega
Freundliche kompetente Beratung
Best eSIM
One of the easiest apps to use, coverage is great everywhere I go.
Free
About
Install your eSIM once and enjoy seamless global connectivity. Purchase data packages for entire regions, eliminating the need for reinstallation or QR codes. Stay online for maps, messaging, and memories with fast 4G/5G data across multiple countries.
✓Install eSIM once
✓Regional data packages
✓Seamless cross-country coverage
✓Fast 4G/5G data
✓No QR codes or reinstallation
Show original description
+1
What's New in One Sim
2.0.2
October 10, 2026
Thank you for using onesim! We continuously strive to make the app even better for you. This version brings performance improvements and optimizations for a faster, smoother experience.
MoreUser reviews
FAQ
How does One Sim work for travelers?
One Sim allows you to install your eSIM once and then purchase regional data packages. This means you can travel across multiple countries within a region with a single data plan, without needing to reinstall or scan QR codes.
What kind of data speeds does One Sim offer?
One Sim provides fast 4G/5G data, which is ideal for using navigation apps, staying in touch via messaging, and accessing other travel-related applications while abroad.
Is One Sim available on all devices?
Based on the provided information, One Sim is supported on iPhones and iPods. It is not specified if it is available on Android devices.
How often is One Sim updated?
The latest version of One Sim was released on June 9, 2026, indicating recent development activity. This suggests the app is actively maintained and updated.
What is the age rating for One Sim?
One Sim has an age rating of 4+, making it suitable for users of all ages. This indicates no mature content is present within the application.
Does One Sim have ads?
No, One Sim does not contain advertisements. The app is listed as free and does not have an 'hasAds' flag set to true.
What is the user rating for One Sim?
One Sim has a rating of 4.0 stars based on one review. This suggests a generally positive user experience from the limited feedback available.
Can I use One Sim without an internet connection?
While the eSIM installation and data package purchase require an internet connection, once activated, the data plan allows you to stay online for various services like maps and messaging without needing Wi-Fi.
