The problem is "very powerful" is the opposite of what I want in a mobile editor. I've tried some of the existing options but they are just not ergonomic to use

The problem is "very powerful" is the opposite of what I want in a mobile editor. I've tried some of the existing options but they are just not ergonomic to use. I want to fill in missing details with an easy to use spacious UI, not have a fully functional GIS mapping tool squished on to a phone screen while I'm standing on a busy street with sun glare on the screen. Street complete has that perfected.