iRoot APK is a tool for rooting Android devices that allows you to perform the rooting procedure through a guided process without using any additional device or software (previously, in most cases, a computer was needed). This means you can make profound modifications to the system, thus bypassing the device manufacturer's control over the device (only a few manufacturers sell their phones already rooted).
If you arrived here without knowing what is rooting an Android smartphone and why it is needed, let us explain it quickly: rooting is the process of acquiring superuser permissions on the Android operating system.
