If you want to get free apps for the iPhone or iPod Touch, you must first have your iPhone or iPod Touch jailbroken. After that, simply get on Cydia and add the Hackulous repository;

Cydia -> Manage -> Sources -> Edit -> Add

Enter the link “http://cydia.hackulo.us” like the picture below.
Thanks to: Caged Insider :Inside Source on everthing MMA

free iphone apps hackulous 200x300 Hackulous Tutorial: How to get Free iPhone Apps

After adding the source for the Hackulous repository to cydia, the next step is to download theInstallous app for the iPhone or iPod Touch. The Installous app will be your source for apps.

Cydia -> manage -> Packages

From there whether you want to perform a search function or just scroll down and find it, you will have to install the Installous app. The Installous app will be like an alternative to the iPhone appstore.

free iphone apps installulous 200x300 Hackulous Tutorial: How to get Free iPhone Apps

Once the Installous app is on your springboard, you can use it to find the many apps that are available for the iPhone and iPod Touch. The app will often redirect you to hosting sites via the browser but from there just simply select a mirror and you should be able to enjoy the apps free.