INTRO: In this article, we will explain What rooting an Android means, Why Root? Why not Root? Merit and Demerit of Rooting an Android OS. How to Root? This Article explain a full details about rooting.

As we all know that Android  is a free Linux based platform and is an open software stack with an operating system, middleware, and applications. ... Android is a strong rival to the Apple iOS, a closed operating system and platform used on the Apple iPhone. 
Or
Android is a mobile operating system developed by Google, based on a modified version of the Linux kernel and other open source software and designed primarily for touchscreen mobile devices such as smartphones and tablets.



What is Rooting: Rooting s a process that allows you to attain root access to the Androidoperating system code (the equivalent term for Apple devices id jailbreaking). It gives you privileges to modify the software code on the device or install other software that the manufacturer wouldn't normally allow you to. 

Attaining Root Privilege: Rooting can also be defined as a process where you unlock the manufacturer imposed security of your smartphone and become master of your device. It is sometimes risky as the warranty of your device is nullified, but the experience is worth it. By rooting you can use all the features of your phone or tablet and without getting warnings of your device's vulnerability to malicious software. The user must take full responsibility for the affects after rooting. Therefore you should be double sure to root your device.

Why Root: 
Gaining root access on Android is akin to running Windows as an administrator. You have full access to the system directory and can make changes to the way the OS operates. As part of rooting, you install usage manager (SuperSU is the main one right now). These tools are basically the gatekeeper of root access on your phone. When an app requests root, you have to approve it using the root manager.
Merit of Root: 
So what can you do with root specifically? Let’s say there’s a system app that you really don’t like seeing, but it can’t be disabled through the standard method.
Android has more built-in backup smarts than it once did, but having root access ensures you’ll never lose anything again. Not only can you restore “deleted” files, you can make full backups of your apps and system. That’s handy in case your tinkering breaks something, and you have to repair the OS.
The Risk or Demerit of rooting
Rooting your phone or tablet gives you complete control over the system, and that power can be misused if you’re not careful. Android is designed in such a way that it’s hard to break things with a limited user profile. A superuser, however, can really trash things by installing the wrong app or making changes to system files. 
The security model of Android is also compromised to a certain degree as root apps have much more access to your system. Malware on a rooted phone can access a lot of data. Again, you need to be careful what you install.

Requirement:
1 Mobile network or Wi-Fi availability: A good as fast network is required to root. A fast mobile area network is required to root smoothly, faster and easier. A poor network area might interrupt root processes.

2. Switch on the "unknown sources": Allow installation from an unknown sources outside play store is required. Go to settings >> personal >>security >> scroll down and switch on the unknown sources.

How to Root: 
Some Android Apps has been developed in order for Android OS user to gain root access easily. Some of those App will be discussed here >>

1. Kingroot:
KingRoot is an application that lets you root your Android device in a matter of seconds, as long as you have an operating system between Android 4.2.2 and Android 5.1 to 6.0+  This root tools is compatible with any Android devices. Allows you to root in just a minute. This is the most powerful and easiest way to root android phones because of its capability. Kingroot cannot be compared with other root tools! 
kingroot.net Download Kingroot

2. Kingoroot:
The easiest and fastest one click apk to root your Android.
Just a few simple steps can get you a rooted device within minutes. KingoRoot is developed in apk file format. Free download and install it on your Android device. This tools is compatible with almost all the Android devices and even Android version 4 to 6. No stress required, just a one click root. Download KingoRoot

3. Z4root:

Z4root is another Android apk, popular rooting application for Android operating phones and tablets.
Easy rooting in less than some minutes. Z4root is a safe method of rooting and it's faster.  Download Z4root

4. Root Genius:
Root Genius for Mobile is a one-click Android rooting application that lets you root your device without the use of a PC or laptop computer. This is a powerful and safer way to root android devices and compatible with Android v4+ Download Root Genius latest version

5. Root master:

Root Genius for Mobile is a one-click Android rooting application that lets you root your device without the use of a PC or laptop computer. This has been the most common way and easier way of rooting an Android phone depending on its capability! Root Master is not compatible with all Android devices but it's powerful and easy if possible yours is compatible with root master. Download Root Master

With alll these provided Android apk you can get your phone rooted easily, but note some rooting process might failed and you will be told to try PC 💻 method of rooting.
There are also some many more rooting app but the above listed is best and easy.
To get those apk downloaded, go to google.com and type the name of the app You wanna use to root. Eg kingroot apk, hit search and options to download will be shown.

Disclaimer: You can't find those apk in Play store because they're dangerous to the phone, it was banned and can only be found when you search them in Google or other platforms. Rooting an Android is dangerous and might got your Android device crashed if not properly handled. I am not responsible for any for your tragic flaw, make up your mind before getting a phone rooted. Rooting can also void your phone warranty.

We hoped you found this article helpful.