SIM Applications
The SIM Applications menu is found on iPhone, iPad, and Windows devices. For Android devices, see the SIM Toolkit article for more information.
The SIM Applications menu is the control center of the KnowRoaming SIM Sticker. After applying the SIM Sticker to your SIM card and putting it back into your phone, the SIM Toolkit will be available on your device.
iPhone and iPad
Go to your iPhone Settings > Cellular or Mobile Data > scroll down to find the SIM Applications menu
*On older versions of iOS, SIM Applications is located in Settings > Phone.
Windows devices
Go to your Settings menu > mobile network > sim applications