The word for today is USER-FRIENDLY - a machine or a system that is easy for people who are not experts to use. It is easy to learn and understand and deal with. Synonyms of user-friendly are simple, basic, handy, manageable, and easily operated. Example: "The latest Samsung Galaxy S23 user-friendly features allow seniors to use it with ease."
However, there's another meaning for user-friendly nowadays. It meant that someone be-FRIEND somebody so he can USE him. Or to put it bluntly: "mabait ka lang sa tao dahil may kailangan ka."
Beware of these people ... you can see them in your home, in school or at work.