Danki
Japanese Kanji, Your Way
The kanji flashcard app built because the alternatives weren't enough. Audio. Sentences. Drive Mode. No fluff.
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Why I Built Danki
I've used White Rabbit Press flashcards for years. Great content, but no audio. No example sentences. No way to study while driving. And worst of all, it's no longer in print.
WaniKani, Kanshudo, Migaku—I tried them all. Each had pieces of what I wanted, but none had everything: kanji in real sentences, with audio, that I could study on the go.
So I built it myself. Danki is the app I wished existed—built by one developer who uses it every day. No VC funding, no growth hacks, no dark patterns.
"Have a feature idea? I'm listening."
Send FeedbackSee It in Action
Real screenshots from the app
Furigana & Mnemonics
Sentences & Audio
Vocabulary
Audio Drive
Progress Tracking
Dark Mode
Also on Apple Watch
Kanji Highlight
Watch App
Highlight with Example
Why $49 Is a Steal
Not a subscription. Not $49/year. $49 once. You own it forever.
The Gold Standard Is Gone
For years, serious Japanese learners had one go-to resource: White Rabbit Press flashcards. They were the gold standard—used by tens of thousands of students in over 100 countries.
They're now out of print. When available, a complete set cost $185 plus shipping—all in, about $250 to your door. Today? Used sets sell for $200-300. Sealed sets go for $400-600+ when you can find them.
And that money got you: static cards. No audio. No spaced repetition. Cards that could get lost, damaged, or worn out. Cards you couldn't take everywhere.
For $49, You Get More
- ✓Native Audio: Real human voices for every word and sentence—not synthesized robot speech.
- ✓Real Context: Vocabulary and example sentences so you learn kanji in use, not isolation.
- ✓Toggle Furigana: Challenge yourself when ready, or get help when you need it.
- ✓Spaced Repetition: Built-in FSRS algorithm surfaces cards at the optimal time. No separate app needed.
- ✓Drive Mode: Hands-free audio so your commute becomes study time.
- ✓Widgets: Apple Watch and home screen for passive exposure throughout your day.
- ✓Dark Mode: Light and dark themes because you'll be using this at night. Trust me.
Danki
$49 once
Use it for 3 years: 4 cents a day
Subscription Apps
$120-180/year
Stop paying, lose access
Danki's Always With You
Your phone is in your pocket. Waiting in line? Five minutes of kanji review. On the train? Audio mode. Quick break at work? Glance at your widget. Physical flashcards sit on your shelf. This is with you everywhere.
It Keeps Getting Better
Built by an indie developer who uses the app daily. Every update is free—new features, refinements, fixes. And you can actually talk to the developer. When was the last time Duolingo asked what you wanted?
Everything You Need
No games. No gamification tricks. Just effective kanji learning.
2,136 JLPT Kanji
Complete coverage of N5 through N1 with Jōyō rankings. Every kanji you need for the JLPT.
Native Audio
Every vocabulary word and sentence has native Japanese audio. Hear it pronounced correctly.
Real Sentences
Japanese and English example sentences for every kanji. Learn in context, not isolation.
Toggle Furigana
Show or hide furigana readings. Test yourself, then check your answer. Your choice.
Audio Drive Mode
Hands-free flashcards with voice commands. Study during your commute without touching your phone.
FSRS Algorithm
State-of-the-art spaced repetition. Review cards at the optimal moment for long-term retention.
Apple Watch
Quick kanji review from your wrist. Perfect for spare moments throughout your day.
Home Widget
Daily kanji on your home screen. Passive exposure reinforces what you've learned.
Quiz & Review
Quiz mode for SRS-powered study. Review mode for free browsing. Switch anytime.
Audio Drive Mode
Turn your commute into study time. Audio Drive Mode plays vocabulary and sentences through your car speakers, with configurable pauses for you to recall the meaning.
- ✓Voice commands: say 'good' or 'again' to rate cards, or speak up only when you need it again
- ✓Configurable timing for word gaps and response windows
- ✓Works in Quiz mode (SRS) or Review mode (free browse)
- ✓Background audio—switch apps without stopping
$49. Complete Kanji System. Yours Forever.
Physical flashcards that did less cost $200+ when you could find them.
Subscription apps cost more than this every single year—and you never own anything.
$49 is not what this costs. It's what you're getting away with.
Download on App Store