How to Set up your eSIMiOS
(Easy App setup)

Download the World eSIM App

Click here to to set up without the app.

Please be sure to check below
  • A stable internet connection is required for installation and activation.
  • Expiration date varies on a plan. Please confirm the plan at the time of purchase.

Please be sure to have the following items ready

  • Devices that use World eSIM

    Please prepare a SIM-free device or an unlocked device that is compatible with SIM.

  • Internet environment(Wi-Fi,etc.)

    Device must be connected to the Internet.

  • World eSIM App

    Download the app before traveling abroad.

How to set up your eSIM

The eSIM setup is completed in the following two steps.

  1. STEP1Installing eSIM
  2. STEP2Device settings

STEP1Installing eSIM

※Please note that the usage period starts as soon as activation is completed.


Open "My eSIM", and login on World eSIM App.


Select "iOS Device".
Please scroll and tap "INSTALL eSIM".


The eSIM loading (profile installation) will begin.

  1. Tap "Continue" to begin installation.
  2. Tap "Done" after completing the mobile communication settings.

Select "Personal" as the default line and tap "Continue".

※Depending on the type of eSIM, options other than 'Personal' may be displayed. In such cases, please select an option other than 'Primary Line".


There is no need to set up iMessage or FaceTime. Tap "Continue".

※To continue sending and receiving messages through iMessage or FaceTime with your current phone number, please select 'Primary Line.' You can edit this setting later if needed.


Select "Personal" for mobile data communication and tap "Continue".

※If there is "Allow Cellular Data Switching" displayed, do not turn on.


Installation of World eSIM is now complete.

The loading (profile installation) to your World eSIM device is now complete.
Next, proceed with the eSIM connection settings on the device management screen.

STEP2eSIM connection settings on the device management screen


Go to Settings and tap "Cellular".


Tap the newly added eSIM.


Enable "Turn On This Line" and also enable "Date Roaming".


Setup complete!!

This eSIM setup is now complete.
Operational procedures may vary depending on your device settings, operating system, update version, and other factors.

Change of settings after return
  • To modify the settings upon return, select the carrier service at "02" and restore the settings at "03".