What happens when you jailbreak an iPhone?

What happens when you jailbreak an iPhone?

You can access tweaks to modify your phone.

If you *just* jailbreak your iPhone and don't do anything else, the only difference you'll see is maybe a different logo when you turn it on, and there will be a new app called Cydia (and maybe another one or two).

That's it - everything will work the same and look the same (except if you install an iOS update from Apple, it will remove your jailbreak). Nothing else changes until you use Cydia to add new jailbreak-only apps; it's what those apps do that make jailbreaking worthwhile - for instance you can install new themes, enable true multitasking, etc.

You get free apps, games, ect.