Re: Costing for Software
That is good advise.
You do not need to share the profits. You can advertise you project without revealing the details on some sites where freelance developers can work with you. Very good developers from across the world are willing to work for peanuts.
I have personal experience of working with some of developers from those sites. If you like you can share your phone number in a PM and I would be happy to share my experiences with you.