depends on scale of the work - you can't expect the same price for simple one-pager app and some sophisticated software

looking at the process I normally take 20 eur per hour, giving the guidelines I'll provide an estimate upon which cost is calculated

typical webapps take up to 20 hours of work, it's up to 400 eur then, if the app is a simple one it could be 50 or 100 eur.

edit: to clarify - 20 eur per hour converted to BTC using coinbase price at the time of negotiation

I even did some multiplayer games, if someone needs multiplayer bitcoin related thing (or just multiplayer related thing), I'd be glad working on that too

coolio, thanks

offering programming skills since 2006, 5 years of professional expierence, expert level javascript, writing in nodejs and html5 daily at work

pm me if you need anything done