it is not a guarantee that the project will succeed if they release their project using some kind of application in the palystore or appstore, I often find these daps projects and some of them have good features or functions and even vice versa. and I doubt because most of their users are based on rewards for posting positively about the project.
say like, good work, good application, this is the best wallet out of the others, I'm happy to be able to promote this wallet project and bla ... bla ... bla 
I say this because I am one of them (but that was then), I have participated in such projects and require participants to take screenshots and positive reviews about them. I think that is not always true, actually it will plunge someone who is lack of knowledge and can be trapped in it