If you have not jailbroken your iPhone, iPad or iPod touch, you will need to do that first. Please see our f.a.q page for more information about jailbreaking.
When you jailbroke your iPhone/iPod Touch the Cydia application was added to your iPhone/iPod Touch automatically. It was added to your SpringBoard with the rest of the stock applications like Calendar, Maps, Weather etc.
Below are steps on how you can add applications to your iPhone/iPod Touch using Cydia.
7. Select an application. This will open a screen with all the information about that application including; the name of the application, the version, the author of the application, a description of the application, more information about the application, the package ID, the section the application is in, the maintainer of the application and the source information for the application.
9. This will bring up a pop-up window in which you will need to confirm that you would like to install the application. You can do so by selecting Confirm in the upper right corner. You can also choose to Cancel the install by selecting Cancel in the upper left corner.
* If you already know the name of the application you would like to install, you can easily search for it.
6. Follow steps 7-13 above.
Tips: To add even more applications to Cydia, you will need to add additional sources. To learn more about installing additional sources, see THIS tutorial.