I just performed a jailbreak on my iPod Touch and I downloaded some cranked apps. I tried to install them using iTunes, but it says some app can’t install because they are not compatible with iPod Touch.
thanks for the link
Install Installous from Cydia.
Using cracked apps is bad practice considering the developers usually put a lot of hard work into them and should be supported if you like the app.
However, some developers will release betas for testing before going to the app store, or they can't get approved. I've had good luck with Install0us for ipa files that iTunes won't install.