Nothing new this is why we have Scam Accusations boards and more to keep awareness to the other member also to the people about the fake application this is the reason why other people give a bad image to the bitcoin or in other coins because of that application which is not a legit or reliable only thing they do is to scam mostly the beginners. To make sure it's safe it's better to research the application and double-check if this is the legit one else report immediately so google or another app store will remove this app. Also, check the developer if the same as the original. AFAIK Apple has better application security than the other brands because they focus on the security for their users.
No, Scam accusations is for the forum strictly. To warn people of services and people who you can't tell could be scammers.
Fake apps? Fake websites? You just have to do your own protections. Bookmark correct websites. Use a password manager so you never need to enter passwords on fake websites. And apps. The worst of it all. Download only verified apps.