Cyder is a desktop client of Cydia, means With Cyder you can install apps available in Cydia from your Desktop. So if you haven’t 3G/EDGE or WiFi connection for your iPhone Cyder is your poison. Cyder can install every Cydia application to your iPhone through your PC. Cyder lets you sync, download/update packages and install them to the iPhone within clicks of your mouse. All you need to do is, Download Cyder by clicking here. Now Extract the rar file and run Cyder.exe by double click. Cyder screen will appear on your desktop here you can add or delete sources, install packages , remove packages , upgrade and pretty much anything you can do in Cydia you can do now on your PC. For detailed operation check the video featured below.