Using GigSky World Mobile Data on your Apple iPhone or iPad, is the ultimate in convenience. To do so, you need to make sure your Apple device is “unlocked”. You can probably unlock your iPhone or iPad if you purchased your device from a US Carrier like T-Mobile or Verizon, and you meet eligibility requirements. If you’re traveling from the United Kingdom to the United States, you can find out how to unlock your Apple device from EE, O2, etc.,.
We’d like to point you to an Apple resource to help you determine if you can unlock your iPhone or iPad. Once your device is unlocked, you can then get a GigSky Data SIM to connect to GigSky cellular data in over 190 countries. You will have convenient access to the internet and all your favorite apps anytime, anywhere.
Source: Apple Support Article https://support.apple.com/en-us/HT204039
Below, you can choose your region to find out if you can unlock your iPhone or iPad with your domestic wireless carrier (in your home country). In the categories listed under carriers for each country, you may see “unlocking.” Click on the unlocking link, or click on the carrier link, to learn if your iPhone or iPad is eligible to be unlocked.