Android vs iPhone apps for Chase
If you use an iPhone, rest assured that the app store is policed and only apps actually provided by a particular financial institution can be downloaded there for that institution.
Not so apparently for the Google app store for Android phones. Google recently removed 50 applications (all by the same developer) that purported to be for various banks, out of concern about such apps harvesting peoples account and login information.
So be careful on the Android marketplace for now if you are looking for a Chase app.