This is a quick tip on how to get apps, which are downloaded from the internet, into your iDevice. Sometimes, you might need to download an app from the internet and iTunes will not allow you to synchronise it with your iDevice. Having your iDevice jailbroken there is a way around it.
First, you need to download and install “AppSynch for iOS 5.0+” from Cydia. To do this, you need to add “http://cydia.hackulo.us” to your Cydia sources. If you don’t know how learn it here.
The next step then is to download your app from the internet, double click on it (it will be added to your iTunes apps) and synchronise iTunes with your iDevice.