I decided to look into installing this app (before I read all the negative reviews!) but PlayStore says I already have it - on two different phones - and that I last used it *yesterday*!! (For the record: I've never downloaded this app to any phone.. and I've searched my phones and do not see it installed.) So - because a rating is mandatory - I am giving it one star for the *possibility* that Costco hacked into my phones and installed a stealth and undetectable version of their app (which launches itself and runs automatically, by the way)!! (Addendum: I am being told by Google that "Most helpful reviews have 100 words or more" and without this addendum I was only at 99 and therefore not helpful.. You're welcome.)