You may learn the fundamentals of computer security and ethical hacking from this free app.
I believe that all of the Kali Linux-related topics and commands have been covered in this program.
This "Kali Linux" application helps pupils learn coding step-by-step from the most basic levels to the most advanced.

Features:
Free of charge
* Kali Linux can be learned at any level, from beginner to expert.
* UI that is stunning and fluid
* Code-based tutorials
* Complete offline program
* Linux Query and Response

All of the Linux commands and a library of Linux commands with examples are available in this program.

The application includes the following tutorials:
Introduction
* Describe Kali Linux.
* Get Kali Linux.
* Default Credentials for Kali
* Kali Linux Background
* Kali Press Release