Roxas is my internal framework used across all my iOS projects, developed to simplify a variety of common tasks used in iOS development. AltSignĪltSign is my internal framework used by both AltStore and AltServer to communicate with Apple's servers and resign apps. AltKitĪltKit is a shared framework that includes common code between AltStore and AltServer. AltServer is significantly less complex than AltStore though, and for that reason consists of only a handful of files.

AltStore makes heavy use of standard iOS frameworks and technologies most iOS developers are familiar with, such as:ĪltServer is also just a regular, sandboxed macOS application. The AltStore app target contains the vast majority of AltStore's functionality, including all the logic for downloading and updating apps through AltStore. Handles app updates directly through AltStoreĪltStore is a just regular, sandboxed iOS application.Refreshes apps periodically in the background to prevent them from expiring (when on same WiFi as AltServer).

Resigns and installs any app with your Apple ID.

Installs apps over WiFi using AltServer.

Now that Delta has been released, however, I'm beginning work on adding support for anyone to list and distribute their apps through AltStore (contributions welcome! 🙂). To prevent apps from expiring, AltStore will also periodically refresh your apps in the background when on the same WiFi as AltServer.įor the initial release, I focused on building a solid foundation for distributing my own apps - primarily Delta, my all-in-one emulator for iOS.

AltStore resigns apps with your personal development certificate and sends them to a desktop app, AltServer, which installs the resigned apps back to your device using iTunes WiFi sync. AltStore is an alternative app store for non-jailbroken iOS devices.ĪltStore is an iOS application that allows you to sideload other apps (.ipa files) onto your iOS device with just your Apple ID.

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