It looks like it has potential to generate income I think you will find buyers.
EDIT: your project is awesome - I just quit my job and got a client to start contracting in February and I would love to use it, please continue. :) It looks like something I'd pay monthly for. Since we're in negotiation I'm going to suggest a price of $5 per month to anchor you down. :)
Hi! Thanks for replay - the main problem i am facing is not moving too fast when it becomes down to features, bugfixes and so on. I will think about newsletter to current users and maybe ask about the potential of the app - how do they see it.
Speed of movement is entirely dependent on how dedicated your workforce is.
Since it's currently just you (and no $), the only motivation for new features is you wanting them.
If you pay a single developer even a slightly reasonable wage, you'll see progress pick back up very quickly. Developers love making stuff, you've just gotten slogged down.