Since firmware 2020-04-04, the Net Device UI is now available in eight languages: English, Français, Español, Português, Deutsch, Italiano, 中文 and 日本語.
Please help improve the localization at http://inout.tennis/translate as Google translate keeps thinking that "line call" means "close telephone ringing"... ;-)
It's also available in seven skins, including a cool player skin corresponding to your In/Out device name:
