It's a scam!
I downloaded the app. I received two notifications that women had written to me but I could not access those notes until I purchased the upgrade. For Several days, when I tried to access those notes, I got a prompt telling me that I had already upgraded, but I still couldn't see the messages… Customer service was no help and seemed to be giving me instructions based on a different app! Now, almost a week later both messages have disappeared and the users don't exist anymore? One, I might believe was an accident but two seems a little fishy. they are denying my request for a refund. Don't waste your time or money.