As you know that viruis kills our files folder or an important work so I use avast moblie security antivirius it takes so much time to scan your phone its cheaking all your phone storage I have some viruis in my phone but avast antivirius cant detect it . I am very shoked that avast is famous of its antiviruis program but it was failed to detect virius.concept of the app is good but cant work. Design of the avast is fine. Thanks guys for reading this.