Magisk, KernelSU, and APatch modules offer powerful systemless modifications for Android devices. Magisk modules are well-established, altering system behavior without touching the system partition, using scripts for customizations. KernelSU modules provide similar functionality but operate at the kernel level, offering deeper control; many Magisk modules are compatible. APatch, also kernel-based, supports its own "APM" modules (akin to Magisk/KernelSU) and "KPM" (KernelPatch Modules) for direct kernel-level code execution, aiming for robust root and module integration.