Today I will tell about three android app that you should must try.
TrueCaller: Its one of vary useful android app that you should must have. It will help you to identify unknown caller and you can also search some number on it.
WhatsApp: Who don’t love to talk to friends? WhatsApp is the app which will help you in every step to connect with your friends. Starting from messaging to video call. WhatsApp have everything that you need to be connected with your friends.
Swiftkey: Its is a keyboard app in which not only you can type on it also you can customize the keyboard as you want.
You should try above three app. Once you start using them you will always keep them in your mobile.