One Sim

One eSIM. Zero Stress.

Only for iPhone

Free

iPhone

With onesim, you install your eSIM once and never again. Every time you buy a new data package, it’s instantly ready to use - no reinstallation, no QR codes, no roaming headaches. Whether you’re exploring Europe, heading across the Americas, or venturing into Asia, onesim keeps you connected with reliable data in every country you visit. Stay online for maps, messaging, and memories - all with a single data plan. Why travelers love onesim: • One eSIM - install once and you’re set • One data package per region - Traveling to Europe? Purchase one data package and you’re covered wherever you go! • Seamless coverage - stay online as you cross countries • Fast 4G/5G data - perfect for maps, chat, and travel apps

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

• Optimized performance for a faster, smoother experience • Improved stability to keep you connected without interruptions Thanks for using onesim - we’re continuously improving to keep you connected wherever you travel.

Version 1.0.8

The developer, Horizon Digital Ventures L.L.C., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Dark Interface

    • Differentiate Without Color Alone

    • Sufficient Contrast

    • Reduced Motion

Information

Seller
  • Horizon Digital Ventures L.L.C.
Size
  • 59.6 MB
Category
  • Travel
Compatibility
Requires iOS 15.4 or later.
  • iPhone
    Requires iOS 15.4 or later.
  • iPod touch
    Requires iOS 15.4 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Horizon Digital Ventures LLC
  • Developer Website
  • Privacy Policy

    • Supports

    • Wallet

      The simplest way to get all your passes in one place.

    You Might Also Like