also: ユーザ
noun
Standard loanword for a person who uses a product, service, or system. Often used in IT, software, and business contexts.
See also: 利用者
このアプリのユーザーは世界中にいます。
Users of this app are all over the world.
ユーザー登録をする
If you register as a user, you can use all the features.