Can I get software updates with simple mobile?

Okay so simple mobile is a plan you can get if you jailbreak your phone (iPhone 4 is what I have) so I was wondering if I can get software updates such as iOS 7 with simple mobile? Cus I heard once if ya phone is jail broken its a dub for updates but is that true for simple mobile or nah?

You can actually install iOS 7 now if you register your device's UDID with a developer account through a site like http://www.udid.in/.It's $5, and then you can try out the new OS before everyone else. That's how I got it on my 4S.