I recommended not calling "Usability Testing" "User Testing". You wouldn't call "wine tasting" "Human tasting". In particular you don't want to put the partici

I recommended not calling "Usability Testing" "User Testing". You wouldn't call "wine tasting" "Human tasting". In particular you don't want to put the participant in a situation where they feel worried they are being tested on their ability or intelligence. You want them to know you are studying or testing the workflow and usability of the app. TLDR; The terms "Usability Testing" or "Usability Study" tend to get better results than the term "User Testing".