I have seen a number of guys installing apps without even knowing why they are installing there are lakhs of apps present some genuine some fakes so always keep in mind not to install too much unnecessary apps most of the time you don`t need the app for any internet services always choose to go for the web version in place of app in that way you can protect your private data and protect your device too. most of the complaints regarding the smartphone running slower or getting hang are related to unnecessary and crap apps present in the smartphone.
So guy`s always watch out for unnecessary apps in your phones some of these apps will cost you a high uasge of your mobile data.