User-friendly software is exactly what it sounds like: it's a technical solution that is easy for all (or at least most) people to use to get their jobs done. This doesn't mean the software isn't complex and feature-rich behind the scenes or that anyone can step up to a computer and operate it correctly.
What does mean by user-friendly?
: easy to learn, use, understand, or deal with. user-friendly software. also : agreeable, appealing. a user-friendly atmosphere. user-friendliness noun.
How do you know if something is user-friendly?
User-friendly is a term we use to describe anything that is easy to learn how to use. It is also easy to use. In other words, even if it sophisticated, using it is simple and straightforward.