I saw there is an IOS app called JMP graph builder. That is great. However, I do not own an IOS device. I'm not gonna give you the talk about how insanely overpriced they are or how they lock you in a system... Anyhow, I own android devices.
Android is 74.3% market share for mobile operating systems (https://gs.statcounter.com/os-market-share/mobile/worldwide). Why limit yourself to IOS ??
Please make an Android app