Because Google Maps is all they know? I've been on the web for 30+ years (wrote my own html home page by hand in 1995 while doing my master's) and have just now heard of "Osmand" for maybe the 2nd time in my life. The other being a few months ago. If I haven't heard of it, how would anyone else who isn't technical hear about it?
reply> If I haven't heard of it, how would anyone else who isn't technical hear about it?
replyIf you assume that mapping services on a low-to-no bandwidth connection are important to them, they'll hear about it through word of mouth. Anything that solves a real problem will spread that way.
Contrapositively, we can conclude that mapping isn't much of a problem for these people.