received a notice that tenant trying to send rent so an App

[Sami Gren]

HI, I received message a few days ago that my tenant is sending me money through RENT APP, I have no clue what this app is, is it legit?, what are the pros and cons?  Would like to know if I should sign up to accept the money, and I believe I will need to link my bank account.  would appreciate input if you know about this app.

also my tenant claims it helps build his credit, I am not sure how, but it says he will be paying there $800 monthly, while his rent is $1200