Seeing stuffs like this scares me, because I'm not very familiar with this forum yet, talk more of been tricked,duped or scammed. Thanks for this information. It's indeed an eye opener. Please newbies watch out. Don't let anyone fool you.
Then I would suggest that you familiarise and educate yourself. Don't download or trust anything you see specially thru Google services, i.e. Google Ads, in their play store and app store. And if you have serious doubts any the legitimacy of any softwares then you can ask from this community and I'm sure more experienced members will be happy to help you out.