And it also is the process of installing the Cydia Free app store on iDevices. Jailbreak is the process of accessing iOS system files beyond the manufacturer restrictions. Indeed, there is a default app store for iDevices, but this Cydia app store brings specialized third-party apps, tweaks, extensions, add-ons, games, and themes, for all iPhones, iPads, and iPod touches for completely free. Cydia Free is the best app store designed for all iOS devices.