I am tell you don’t save the useless Apps because these Apps harming your mobile speed the important symbol of harming Apps is that when they start they hang the mobile some time and the mobile startup is very slow these Apps are very slowdown your mobile speed some time viruses are hidden in these Apps so when you download any Apps you must important to scan these Apps by antivirus and uninstall if don’t need on daily bases .i hope you like my Tips & tricks.