When negotiating you need to be creative with alternatives. From what I understand from your situation, you could consider doing a joint venture rather than selling out or licensing. It appears that you have the skills in creating a product that has "pulling power" but not much expertise in building a business. My definition of "business" is one that makes money. It doesn't take much skill to throw $40 / day at some hosting provider. As many of the posters have commented you need to charge in order to have a business. You probably need to shift your marketing when you start asking for money.
From a product / technical perspective, you also need to look at how many of your "users" continue to use your app after a month or more and how much they use it. That will give you an idea of how many tyre kickers you got and how many switched on, passionate users you got.
Do do a joint venture, you decide on split of revenue, a buy-in value that gets you off stressing about where your next Ramen meal is coming from. Heck, I'd even put the word out to your user base and invite applications for a venture partner. You can't get a better marketer than a passionate user with sales, marketing and business expertise.
From a product / technical perspective, you also need to look at how many of your "users" continue to use your app after a month or more and how much they use it. That will give you an idea of how many tyre kickers you got and how many switched on, passionate users you got.
Do do a joint venture, you decide on split of revenue, a buy-in value that gets you off stressing about where your next Ramen meal is coming from. Heck, I'd even put the word out to your user base and invite applications for a venture partner. You can't get a better marketer than a passionate user with sales, marketing and business expertise.