SukiSU-Ultra is described as 'Kernel-level Android root access with a security-first design, supporting non-GKI and Pre-GKI kernels, advanced customisation, KPM modules, and next-gen web UI' and is a android root manager in the system & hardware category. There are seven alternatives to SukiSU-Ultra for Android, Android Tablet, F-Droid and Android TV. The best SukiSU-Ultra alternative is Shizuku, which is both free and Open Source. Other great apps like SukiSU-Ultra are Magisk, APatch, Shizuku (thedjchi's fork) and KernelSU Next.