$50 is a pretty amazing price point for something as flexible as a smartphone. However, you can get a perfectly usable used 5S for close to that range. Spend $15-40 extra and you can outfit it with new glass, screen, and battery, and it will feel like new, and probably perform at least as well as a brand new $50 Android.

You can get a free developer account that lets you develop and run your own programs since a couple of years.

I don’t know what you’re getting on about with ASICS, but I guess you may just need to accept being in a niche market segment.