Basically, it allows users to install software from third-party by bypassing Apples own App Store lockdown.
Also Read-Apple sued for lying about screen size and pixel count in its iPhone X series
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source: www.techworm.net
Cydia app store disables purchases option for jailbroken iPhones
Cydia app store creator on Friday announced in a Reddit post that software purchases would no longer be available on Cydia App Store.
