25PP is a Chinese application developed for Apple product users, that can not afford or wish to test a program before buying it. The application works for jailbraked and non-jailbraked IPhones, IPads and IPods (iOS 3.1 till iOS 6.0.1). The procedure is simple after you have installed 25PP on your PC, you connect your Apple device via USB and start exploring. The application gives you 3 options: Jailbrake, Non-jailbrake and Developer. For instance, if you have a non-jailbraked device, you select the corresponding option, select the desired application, download and install it on your device (directly or download it on your PC and install it afterwards). Its simple!
Update: 2018. New version available with new features!