Can I use the Personal Hotspot function on my iOS device to share my data plan?

Apple controls the functionality available to Mobile Data users through the Carrier Settings.

iPad

If you have the latest version of iOS and accept all carrier settings updates, you can use the Personal Hotspot feature on an iPad with both Apple SIM and GigSky SIM.

iPhone

You cannot use the Personal Hotspot function on the iPhone with GigSky SIM.