Hiya, i have a TON of apps to test, but im afraid of make my iphone too dirty.

when you uninstall an app, (installed from cydia or even installous), will you delete all? or the phone will keep things like configs, save data, etc?

sometime i need to format my windows pc because it fills with crap uninstalled things, and i want to know if iphone keeps anything after uninstall, so if the answer is yes, i will reinstall the firmware again after the tests.