Have you already got a working app? Because this project called Equis already has an app that works and does the same/similar thing to your idea. heres a link if anyones interested - https://bitcointalk.org/index.php?topic=2243351.0
Yes, the product is ready to go
Check it out on herosphere.gg!Hey guys, I just shot you a PM about the signature bounty when you have a free 2 minutes!