JIT compilation allows a machine to compile source code into machine code in real-time, rather than when an application is loaded. The new update, which was released in compliment to an update for the associate AltServer service, also brings just-in-time (JIT) compilation to apps installed via AltStore. Users can still install their own iOS apps via AltStore, provided they have the. This app allows users to load virtual machines on their iDevice, so now it's relatively straightforward to run an instance of Linux or Windows on an iPad or iPhone. The new sources also bring UTM to the AltStore. Coupled with Testut's own Delta emulator, retro gamers can now enjoy games from every major Nintendo platform (excluding the 3DS, Wii U, and Switch) from apps available via the AltStore app.

The addition of these sources makes it easy to install emulators for three retro systems: Sega's Dreamcast (via Flycast) and Nintendo's Gamecube and Wii (via DolphiniOS). These are simply repositories of non-Apple-approved iOS apps that have met AltStore's safety standards. These include Flyinghead, OatmealDome's AltStore Source, and the UTM Repository. Version 1.5 of AltStore, available to everyone today, adds three new 'trusted sources' to the AltStore app.

While its built-in app store is relatively small, a major update (available today) adds multiple trusted sources to the service alongside other new features. Riley Testut's AltStore is perhaps the most popular alternative method of loading apps on devices running iOS.

Emulator ios 2021