Another native app I find myself using more and more is #gnomemaps
Just because it started to be the most efficient way for me to look things - usually a bicycle route. I.e. its increasingly convincing me by utility, not by the additional reason of better privacy etc.
I should probably add that it actually is a clear goal of mine to use native apps more and more (again) for various reasons - one big one being that it's important for #LinuxMobile - and, well, I'd say its going great :)
alcinnz