AltStore The Best Alternative App Store for iPhone Emulators

iOS developer Riley Testut launched AltStore as a smart alternative to Apple’s official App Store. For years, he has been deeply involved in mobile game emulation and open source development, focusing on bringing classic console experiences to modern smartphones and tablets. AltStore allows users to install apps that normally would not be approved under Apple’s strict guidelines, including his popular Nintendo emulator called Delta. With Delta, users can enjoy retro games directly on their iPhone or iPad.

Before creating AltStore, Testut developed GBA4iOS, an emulator that briefly gained attention before being removed from the App Store. That setback encouraged him to rethink how emulator apps could survive long term on iOS. Instead of relying on traditional distribution methods, he built AltStore to give users more control over installing third party apps.

Delta supports several iconic Nintendo systems such as Nintendo Entertainment System, Super Nintendo Entertainment System, Game Boy, Game Boy Advance, Nintendo 64, and Nintendo DS. While the emulator continues to improve with updates, it already offers a smooth and enjoyable way to play classic games on Apple devices. The interface is clean, easy to use, and designed specifically for touch controls.

Running emulators on iOS is more complicated than on Android because Apple limits how apps can interact with the system. Rather than using jailbreak methods, Testut found a creative workaround. AltStore uses Apple’s own developer features to let users install apps as if they created them personally. This approach keeps the device secure while still allowing sideloading.

AltStore has quickly become a favorite option for iOS users who want more flexibility without modifying their devices. For retro gaming fans, it offers a practical and reliable way to experience classic titles on modern hardware.