Bests & Worsts Reviews from Amazon

I do not understand how you can use this App and find out you have from three to seventeen viruses.....then clean it out..... Then...five minutes or less later..you clean it again. ..and it still h as viruses....So you clean it once more and it still has viruses! Once I find this question answered I might change my one star review from one to a better review. Right now I think I have been had. So until the answer comes I do not suggest buying this. A waste of money. Sounds like this is a scam .