SAI is an innovative APK installer with split APK support. In addition, it has simple app backup/export performance. SAI may install programs using regular Android API, utilizing root access or using Shizuku. SAI is a open-source program, you can find the source code on its GitHub Store - github.com/Aefyr/SAI Please be aware that SAI simply installs user-provided documents and is not responsible for those programs behaviour. Please also note, that a few devices/ROMs aren't encouraged by SAI, that's to do with lousy Android API execution in said ROMs and can not be mended on program side.