3)Just Dial
In the category of simple, but important, Just Dial App is the most important. For this app, you will be in any city in the country, for every special and important phone number and address you will be on the mobile screen. Not only this, the information about nearby ATMs, events, restaurants, etc. is also easily available.
Download Justdail app here https://www.justdial.com/JD-ON-MOBILE