Build muscle memory. Write Hiragana/Katakana/Kanji without hesitation.
Kanji Obsession is a premium Japanese writing app built on deliberate practice and mastery learning. No ads, no streaks, no notifications, and no distractions — just a clean, zero-hesitation writing experience that builds deep muscle memory.
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BEYOND GAMIFICATION. INTO MASTERY.
Most language apps optimize for screen time and engagement metrics — points, streaks, and leaderboards that keep you tapping, not learning. Kanji Obsession optimizes for one thing only: permanent recall.
• Mastery-Based: You only advance when you can handwrite the character from memory.
• Zero Guilt: Learn on your own schedule. No streak pressure, no daily nags.
• Clean Canvas: A pure writing surface. No banner ads or upsell pop-ups.
• No Guessing: Handwrite every stroke. No multiple-choice recognition.

THE COMPONENT BLUEPRINT METHOD
Complex Kanji are assembled from simpler building blocks. Kanji Obsession maps the entire writing system into a topological dependency graph. You always learn and master the components first before unlocking the characters that rely on them.

DYNAMIC KANA INTEGRATION
Before each Kanji, the app drills the Hiragana you need for its kun-yomi (Japanese reading) and the Katakana for its on-yomi (Chinese reading). Every syllabary character stays fresh in your muscle memory — whether you are a beginner or brushing up.

THE ANTI-HESITATION MECHANIC
Traditional spaced repetition (SRS) systems ask you to self-rate your recall ("Easy, Good, or Hard?"). This introduces subjective bias. Kanji Obsession measures execution instead:
1. Write from Memory: Write with correct stroke order and form on the screen.
2. Hesitation Detection: If you pause too long, a hint appears automatically, marking the character as not yet fluent.
3. Flawless Execution: You repeat characters until you can write them without hints or pauses. The algorithm is binary: perfect or not yet. Every stroke is earned.

FROM CHARACTERS TO WORDS
Isolated character drills are not enough. The moment you master a new Kanji, you immediately write high-frequency vocabulary words that use it — cementing muscle memory in real-world context. The topological dependency graph ensures you never encounter a word before mastering every component Kanji it contains.

ENGINEERED TO RESPECT YOUR ATTENTION
• Privacy-First: All learning progress stays encrypted on your device (SQLCipher). Nothing is ever sent to external servers.
• Offline-First: A full Japanese dictionary is available offline. Study anywhere without an internet connection.
• No Third-Party SDKs: No tracking, no analytics, no ad networks.
• Pay Once, Keep Forever: A one-time purchase unlocks advanced levels. No monthly subscriptions, no recurring fees.
• On-Device Recognition: Google ML Kit handles handwriting recognition entirely offline.

INTENTIONAL CONSTRAINTS
To maintain a high-quality, distraction-free environment:
• Paid app (no free tier beyond base content).
• No cloud sync between devices (local-first storage for privacy).
• No social or community features.

Nimeton Labs

Additional Information