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About Nihongo Diary

Nihongo Diary — Write Japanese every day. Get it corrected. Keep going. Writing is the fastest way to make Japanese stick — but only if someone corrects you, and only if you keep showing up. Nihongo Diary gives you both. WRITE & GET CORRECTED - Write a short diary entry in Japanese — any level, any length - AI correction shows your corrected text in seconds, with furigana on every kanji - See a natural, native-like version of what you wrote - Understand every fix with clear explanations, key mistakes, and vocabulary - Ask the community: real learners (and their corrections) alongside AI YOU'RE NOT DOING IT ALONE - Share entries to the community feed and cheer each other on - Get corrections and comments from fellow learners around the world - Follow friends, react to entries, and reply to comments - Push notifications remind you to write and tell you when someone responds KEEP YOUR STREAK ALIVE - Daily streaks and milestones keep you motivated - Calendar view of everything you've written - Word-tap translation while reading other learners' entries - Obie, your study buddy, celebrates your progress Made by Tetsu, a native Japanese teacher in Sapporo, for learners who want to actually use their Japanese — not just study it. Free to start. Write your first entry today. Terms of Use: https://nihongodiary.app/terms

What’s new

Version 1.0.2 · Updated July 28, 2026

Bug fixes and improvements. Added a Restore Purchases button.

App privacy

The developer, Tetta Taguchi, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Usage Data: Product Interaction
  • Location: Precise Location
  • Contact Info: Email Address
  • User Content: Photos or Videos, Audio Data, Other User Content
  • Identifiers: User ID

Used for: Analytics, App Functionality

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