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In-App Purchases
About
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
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What's New in Nihongo Diary
1.0.1
July 18, 2026
- Added in-app purchases for Plus and Pro plans - Improved app performance and loading experience - Fixed various bugs and improved stability - Enhanced practice drills for better learning
MoreSubscription plans
Plus
10 AI corrections/day, 100-word vocab, weekly reports.
$9.991 Month









