[haploid]

Sorry, I never answered your actual question.

First, learn from your mistakes. It sounds to me like you negotiated your current deal poorly. Next time around, if you are committing or risking more to a given project than your other partners, you ought to demand more in return.

Second, monetize. If you have the userbase you say you do, $150k can probably be whittled away very easily.

Third, if your userbase is somehow unmonetizable, there is always the option of selling into a bubble. To be blunt: find a sucker and sell. Just be aware that the ONLY time anyone should ever do this is if they have lost faith in their business model. If you are still passionate about your idea, DO NOT DO THIS.