Rooting is the Android equivalent of jailbreaking, a means of unlocking the operating system so you can install unapproved (by Google) apps, update the OS, replace the firmware, overclock (or underclock) the processor, customize just about anything, and so on.
The question each Android user needed to ask themselves is, whether it's worth to root the device and take risk or not.
The question each Android user needed to ask themselves is, whether it's worth to root the device and take risk or not.
As an Android user I would say yes take the risk!! It's a way to make your Android experience into a totally radical one if you're into that sort of thing. You can customize stuff on your device, in order to make run smoother and quickly.
So, in order to root an Android phone for free there are some best applications available to root the device.
1. Full!Screen
Download
2. GooManager
Download
3. Tasker
Download
4. Juice Defender Ultimate
Download
5. ROM Manager
Download
6. Superuser
Download
7. ROM Toolbox Pro
Download
8. Greenify
Download
9. Root Explorer
Download
10. Titanium Backup
Download
I would suggest you to buy a cheap Android smartphone and start rooting of the device, once you get comfortable with the process then take it to the next level by rooting and customizing your daily driver.
Finally, start with the process and do let me know if you need any help regarding Android application development.