Questions on "users"

Hi Guys,

Might be a daft question but when I select my app in the glide platform i have the name of the app and also the the number of “users” underneath.

Is this how many people have visited my app? or how many people have signed up?

If it is the second option how can i see their data? as i have a google sheet with “app logins” but there is only a handful there.