TangoBox - Learn Japanese

The most effective way to learn Japanese vocabulary is here. TangoBox is a Japanese learning app designed to build your vocabulary from the ground up. Powered by a spaced repetition system (SRS), this Japanese flashcard app helps you permanently remember hiragana, katakana, kanji, and words. Whether you're a complete beginner, studying for the JLPT, or learning words from anime and manga, TangoBox is built for every level.

No expensive subscriptions, no constant internet connection, no complicated setup required to learn Japanese. TangoBox is completely free, ad-free, and its core features work offline.

Smart Spaced Repetition System (SRS)
Using the scientifically proven SM-2 algorithm, each word is reviewed right before you're about to forget it. Japanese vocabulary sticks in your long-term memory. Just five minutes a day is enough.

Hana AI - Offline Chat Partner
Your AI teacher that works without an internet connection. Ask questions about Japanese word usage, request example sentences, and practice. Hana runs entirely on your device, so your data never leaves your phone. Connect your own Google Gemini API key for an even more powerful AI experience.

Six Different Quiz Modes
Classic flashcards, multiple choice, listening mode, quick review, reverse flashcards, and reverse multiple choice. Each mode targets a different learning need, helping you build active recall skills in Japanese.

Japanese-Specific Tools
Furigana support shows you the reading of every kanji. Word detail pages include kanji analysis, stroke count, and meaning distinctions. Fourteen verb conjugation forms are covered: plain and polite, affirmative and negative, past, present, and future, te-form, conditional, passive, and causative. Audio pronunciation helps you learn accurate Japanese pronunciation.

Jisho Integration
Just type the Japanese word and hit search. Meaning, reading, JLPT level, and example sentences are filled in automatically. No manual data entry, no wasted time.

Categories and Personalization
Organize your words into custom categories: Travel, Food, Business, Anime, JLPT N3. Assign a color and emoji to each category. Focus your quizzes on specific categories.

Motivation System
Keep your daily study streak alive and collect 20 different badges: First Step, Japanese Master, One Week, One Month, One Year. Set daily goals and track your progress on a heatmap.

Home Screen Widget
Add a widget to your Android home screen. See at a glance how many words are due for review today and your current streak. Tap the widget to see a random word and start learning.

Privacy-Focused
No personal information is collected. No account required. All your data stays on your device and is never sent to any server. Use the backup feature to export your word list as JSON.

Notifications
Build a study routine with daily reminders. Get notified when words are due for review. Receive alerts when your streak is at risk of breaking. Use quiet hours to avoid notifications at night.

Kana Alphabet
New to Japanese? Use the Hiragana and Katakana practice mode. Test yourself on every character and track your accuracy.

Completely Free
No paid features. No ads. No in-app purchases. No hidden costs. Every feature is available to everyone.

Multi-Language Support
Turkish, English, Korean, and Indonesian interface languages. Use the app in your own language.

Download TangoBox and start your Japanese learning journey today. Add your first words, complete your first quiz, and meet Hana AI.

Success is one word away.