Linux is regarded as the best operating system for ethical hacking and penetration testing also called pentesting. There are various hacking apps available for Android, as it is a Linux based operating system. If you want to test out vulnerabilities and find bugs, you need a solid hacking tool to back your research up.
Some of the apps given above may work only on rooted Android smartphones. We have given links for the App download, however download the app at your own risk. If you are not familiar with pentesting, theses apps will do you no good.
Kindly mention any other app which you may like for research/hacking/pentesting and we will include it in our future posts.