Cydia is a third-party application installer which is similar to the App Store and developed for the jailbroken iOS iDevices. Just think of Apple's official App Store, this is the same as the App Store that means you can download apps, games from the Cydia downloader. But there are many advanced options have been added in Cydia free store, more than the official store. Furthermore, if you have installed Cydia download on your iPhone, iPad and iPod touch, you're eligible to download unlimited apps, themes, tweaks, and more beneficial stuff for free or for a low cost. As we noticed above, this will allow you to customize your iDevice in a different way and that's why the members of the jailbreak community are searching for the Cydia installer.