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App language settings 🌐

RedKiwi has a single language setting“Interface Language” in the Profile tab. It controls two things at once:

  • App UI (menus, buttons, helper text)
  • Subtitle translation language for videos

There’s no separate option to set a different “translation language.” If you set the interface language to Korean, video subtitle translations also appear in Korean.


Currently 3 languages:

  • 🇰🇷 Korean
  • 🇬🇧 English
  • 🇯🇵 Japanese

Profile tab → Settings → Interface Language

Pick your language and the entire app, plus subtitle translations, switch together.


Korean / Japanese / English translations are written by humans by default. Some other languages may be machine-translated, in which case the app shows:

“This video’s translations are currently being provided through machine translation.”

If something’s confusing, asking AI Coach is a good fallback.


  • Start with whichever language is most comfortable — it lowers the load on yourself.
  • Once you’re more comfortable in English, try switching the interface language to English. Subtitle translations follow along, giving you an “English-to-English dictionary” learning style.