This articles shows how to prevent iTunes automatically delete your apps in 4 simple and easy steps from iTunes itself without any codes etc.
After purchasing your app and downloading, a lot of times iTunes tend to delete apps that you have bought. And in case you have jailbroken with sprit / cydia, the moment you connect and sync your iPod or iPhone with iTunes, it is bound to delete your apps. And if you ask not to sync your apps, iTunes threatens to delete all apps from your touch or phone.
Fortunately the solution is right inside iTunes.
Step 1 : To stop automatically sync itunes with ur iPod or iPhone, first go to "Preference" in iTunes.
Step 2: In Preference window, go to "Devices"
Step 3: Check / tick"Prevent ipods, iPhones and iPads from Syncing Automatically.
Step 4: Now connect your iPod / iPhone / iPad. Once connected go to File > Transfer purchases from your ipod / iphone / ipad.
Once you do that, now your apps will never get deleted. Now you can sync it back.
If you wish to enable auto-sync, you can uncheck from step 3 now. But I recommend manual sync.
