Hi,
I think that it would be important for us, customer, to understand what's your business model. As a security app, we should be able to know how would you work?
So How can you make money on your app? Do you work like keepass, you have other jobs and do that as a side job (which is absolutely not a problem if there is not conflict of interest)? If you were a european company, 9 euros for only buy once the mobile app would be really not enough to survive for that big of a team. How can we trust a company that we don't know how do they make money? Especially with the problems with facebook etc. Any attempt to levitate this subject won't be very good for your image so I would suggest a frank answer to that and statement.