affiliated with Google -RRB- made it available for free through Cydia . It 's difficult to get accurate data on how many customers have jailbroken their iPhones . But based on the number of unique device identifiers tracked on his server , Freeman claims that about 4 million , or 10 percent of the 40 million iPhone and iPod Touch owners to date , have installed Cydia . On a recent day , he said 470,000 people were connecting to the Cydia store , up from 350,000 per day just a few months ago . Among many free apps , there are also 15 paid apps in Cydia , and the store has earned $ 220,000 in overall sales in just five months . `` People are so annoyed by Apple and their s -- , and if you give them opportunity to go around it , then they 'll even pay for it , '' said Kim Streich , a developer whose app 3G Unrestrictor earned $ 19,000 in sales in just two weeks through Cydia . Though Cydia is relatively young , the underground `` Jailbreak '' community has existed since the first iPhone launched in 2007 .
-LRB- WIRED -RRB- -- Apple is the exclusive gatekeeper to its iPhone App Store , able to reject apps at will -- as it did July 28 with Google Voice . Some would-be iPhone developers , rejected by Apple , are turning to an unauthorized app store called Cydia . But some developers are n't taking the rejection lying down : They 're turning instead to an unauthorized app store called Cydia , where forbidden wares continue to exist -- and even earn developers some money . That store is operated by Jay Freeman , more fondly known in the iPhone `` Jailbreak '' community as Saurik . Only five months old , his app store Cydia specializes in selling apps that Apple would reject or ban -LRB- or already has -RRB- . To use Cydia or the apps available through it , customers need to jailbreak their phones -- hack them to work around Apple-imposed restrictions -- a process that Apple claims is illegal . Indeed , you can even get a Google Voice app , GV Mobile , through Cydia . After Apple pulled the app from its App Store , developer Sean Kovacs -LRB- who is not