Beside that, great story, great spirit, congratulations, I admire everyone actually getting things done :)
I outsourced 95% of it. I created the initial mockups by hand and did some of the debugging, but the core app development was done by contractors. And yes, for $500.
The point is it wasn't great, but it was good enough to test the market.
1. Contractors work on tons of apps, the vast majority of which don't make any money. Their business is making apps, not selling them.
2. Focus on long-term relationships. If the contractor knows you're going to hire them in the future for more work they'll be less likely to screw you over now.
3. Last resort: you can report pirated apps to Apple.
Since then for upgrades and other apps I've hired others that have cost more than $500 :)