Do you own the newly released iPhone? If yes, then it must be running on latest iOS 12. Luckily, we have got a good news. Cydia Impactor can be used on iOS 12 to sideload your favorite Cydia tweak or app, if you have its ipa file.
LocaliApStore is kind of Installous and vShare alternative for iOS 12 devices, which has one obvious advantage: it can be installed without jailbreak on iPad and iPhone.