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In Flashcards or Word Battle, choose a language under "I am learning".
Me → Language: Device language, Tiếng Việt, English or 日本語.
Mini apps update themselves when opened, with no App Store update needed. You can turn off "Auto-update" for each mini app under Me.
In a mini app, tap ••• in the top-right corner → Report content. On a leaderboard, tap a name to report or block.
Me → Delete account. Your data is deleted immediately and cannot be recovered.