The finance yahoo app in mobile is not the same as the same app running in mobile browser. Mobile browser has all the tabs for company research like: All, News, Earnings calls, etc. and Join Call button. It closely resembles the finance on laptop. The actual mobile app is a junk. Has non of these features.
Are you planning to add any of these features to the mobile app? If not, you probably need to retire it, so people don’t get confused by it. The whole reason of having mobile app is that it provides better experience and is richer than its browser counterpart on mobile. The person in charge of your content need to understand these dynamics.