Jailbreak your iPhone iOS 6
Install installous 5 from cydia " The idea here is to have appsync 5+ installed"
Download i-funbox application on your laptop
Go to apptracker . org "This site has the exact same installous apps, same everything like you are using installous but using your pc or laptop
Download your app & Connect your iphone to your pc and start the ifunbox application
Click on "Install app" and choose the app that you wanna install on your iphone now i know it seems like a lot of things you have to do to install apps, but trust me once you do it..
Its ganna be apptracker . org--
>download-->ifunbox-- & >install
Thats it just try it an it will work PERFECT and after a while you'll start likin it looooooool its easier to search and brows apps using apptracker . org than installous
The creator of this guide has not included tools