You might want to explore platforms like AngelList, GitHub, or even LinkedIn to connect with programmers interested in joining your mobile startup for equity. These platforms often attract entrepreneurial-minded individuals looking for unique opportunities. Additionally, you can consider posting your opportunity on relevant forums or communities focused on mobile development or startups.

By the way, if you're seeking professional assistance in mobile development, Cleveroad offers excellent services in this area. You can check out their mobile development service here: https://www.cleveroad.com/services/mobile-development/. They have a proven track record of delivering high-quality mobile solutions.