This is not an app that I know about, and would advise to tread carefully and be very cautious. A lot of apps out there aim to defraud users of their ada or other assets, and a large part of them are scam apps. I would personally only stick with apps that are from official entities (Daedalus & Yoroi) or third party wallets that have had positive feedback from the community such as: AdaLite, Atomic, Infinito wallet.
For more scam/fraud information and prevention, please visit here: