Most of the apps I've worked on don't have conversions and aren't indexed by search engines. One app I worked on recently did have a mobile version that receiv

Most of the apps I've worked on don't have conversions and aren't indexed by search engines. One app I worked on recently did have a mobile version that received a small fraction of all traffic, and even then overwhelmingly from relatively modern iOS devices. It's like all engineering: use the right tools for the job. If low-end Android users are a significant portion of your target audience you have to design your system around that.