The main thing I advertise is my Android apps. When I advertise on places like Google or Twitter, I can target only people using an Android device. I can then

The main thing I advertise is my Android apps. When I advertise on places like Google or Twitter, I can target only people using an Android device. I can then further fine tune it to people who are searching for certain words (Google) or who are searching/tweeting certain words (Twitter). Reddit does not have this type of targeting by platform. I'm not sure why that is. It would probably take me about 24 hours to write an MVP script that would serve a different ad dependent on platforms. I would certainly at least try them out if they allowed targeting by platform like the major advertising networks do. And if I tried them out and I seemed to be getting a decent ROI, why wouldn't I keep using them?