NinjaKana
Hiragana & Katakana in 30 days
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Read Japanese in 30 days.
NinjaKana teaches you hiragana and katakana — the two alphabets you need to read Japanese. No distractions. Just a proven spaced repetition system that adapts to your memory.
Why does this matter? Without hiragana and katakana, you can't read a textbook, follow a course, or make real progress.
They're the gateway to Japanese.
Most apps make you recognize characters — but not retain them. You do exercises, feel like you're progressing, and two days later you've forgotten everything.
NinjaKana is different. Our SRS algorithm shows you each character at the perfect moment — right before you forget. In 30 days, you read Japanese.
WHAT YOU GET
- 46 hiragana + 46 katakana (everything you need to read)
- 250 native audio files (clear pronunciation)
- SM-2 spaced repetition (science-backed memorization)
- 10-15 min/day is enough
BONUS CONTENT
- 100 N5 kanji (essential characters)
- Vocabulary lessons
- Grammar basics
- 450+ exercises
GAMIFICATION THAT WORKS
- Progress from Genin to Kage
- Daily streak with protection
- 7 lives (more forgiving than other apps)
- Daily quests and rewards
- Badges to unlock
PREMIUM (OPTIONAL)
- Unlimited lives
- Ad-free experience
- All content unlocked
- Support development
WHAT USERS SAY
"Addictive like Snapchat streaks" - Sidney
"The SRS system is a real game-changer" - Alpha tester
Download NinjaKana. In 30 days, you read Japanese.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
- Bug fixes
- Improved kanji examples audio
- Promo code system
The developer, Salomon Dosso, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Salomon Dosso
- Size
- 41 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English and French
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- NinjaKana Pro À vie $89.99
- NinjaKana Pro Annuel $34.99
- NinjaKana Pro Mensuel $6.99
- Copyright
- © 2026 Salomon Dosso