Can you jailbreak iOS 6.1.3?

I've been wanting to jailbreak my iPhone 4S with iOS 6.1.3 but I haven't had any luck. I want it to be free and I want to be able to do it without a computer. I just want to do it straight through my phone. If anyone could give me a step by step on how to that would make me more than happy!

If your phone has the version 4 or lower, it can't do it straight from the phone. If you have the version iOS 5 or higher, just go the settings then to software update, there will be the latest version to update. Press install. You will need an Internet connection to do it.