Learn 2,136 kanji
by drawing them.
Akuma SRS makes you write every kanji by hand and grades your strokes instantly with on-device AI. Smart spaced repetition, fully offline.
Everything you need to actually remember kanji
Reading a flashcard is easy to fake. Writing a kanji from memory isn't. That's the difference Akuma is built around.
Draw every kanji by hand
Trace all 2,136 jōyō kanji on a real drawing canvas. Muscle memory beats passive flashcards, so you remember what you write.
Instant AI stroke feedback
On-device AI checks your strokes the moment you lift your finger. No subscription server, no waiting, just immediate correction.
Smart spaced repetition
A proven SRS schedules each kanji right before you forget it, so you review less and remember more.
Streaks, charts & forecasts
See your streak, weekly activity and an upcoming-review forecast. Stay consistent and watch the numbers climb.
Works 100% offline
Local database and on-device recognition mean you can study on a plane, a subway, or anywhere — no internet required.
Built for the JLPT
Pick your target level (N5 to N1) and get paced lessons covering every kanji you need, from your first day to fluency.
See it in action
From the drawing canvas to your progress dashboard, a quick tour.
Simple pricing
Start studying for free. Subscribe to unlock unlimited lessons and reviews.
Weekly
Try it out. Cancel anytime.
- Unlimited daily lessons
- Unlimited reviews
- AI stroke feedback
- Full 2,136-kanji library
Monthly
A steady pace for a real study streak.
- Everything in Weekly
- Lower cost per week
- Great for steady learners
- Cancel anytime
Annual
Best price for committed learners.
- Everything in Monthly
- Best value per week
- Commit to all 2,136 kanji
- Cancel anytime
Prices shown in the App Store. Subscriptions auto-renew until cancelled.
Frequently asked
How is this different from WaniKani or Anki?+
Akuma SRS makes you write every kanji by hand and grades your strokes with on-device AI. WaniKani and Anki are text-only and cloud-bound, while Akuma works fully offline.
Do I need an internet connection?+
No. The kanji database and the handwriting recognition both run locally on your device, so you can study anywhere.
How many kanji are included?+
All 2,136 jōyō kanji, organised by JLPT level (N5 through N1) so you can aim at the exam you are preparing for.
What does it cost?+
Akuma SRS is a subscription, available weekly, monthly, or annually. Start studying first and subscribe when you are ready to unlock unlimited lessons and reviews.
Start writing your first kanji today
Join learners mastering all 2,136 jōyō kanji, one stroke at a time.