Offline APN Database is for international travelers who like saving money on cell voice and data service by using a local SIM card purchased at their destination. The app contains a locally stored database with over 1300 different APN codes for carriers all over the globe. The app will be updated whenever the list is modified. THIS APP DOES NOT UNLOCK YOUR PHONE. However, if you would like an unlock code you can acquire one here: http://unlockscodes.com/cart.php?group=0&service=imei&aid=f0dd4a9