Jinshu Reader

Stop looking up words. Start reading. Jinshu is the only reading app that automatically annotates vocabulary in your language — for English, Chinese, Japanese, and Korean documents. Import any document, set your proficiency level, and read with instant translations right where you need them. VOCABULARY ANNOTATIONS FOR EVERY LANGUAGE English documents: • 30,000-word dictionary with CEFR levels (A1–C2) • Translations in 中文, 한국어, and 日本語 • IPA pronunciation for every word Chinese documents: • HSK 1–6 proficiency filtering • Translations in English, Japanese, or Korean • Pinyin readings available Japanese documents: • JLPT N5–N1 proficiency filtering • Translations in English, Chinese, or Korean • Furigana readings Korean documents: • TOPIK 1–6 proficiency filtering • Translations in English, Chinese, or Japanese THREE WAYS TO SEE ANNOTATIONS • Above: translations appear above each word (like furigana) • Inline: translations in parentheses after each word • Tap: clean reading — tap any word to see its meaning • All three modes work for every language TAP ANY WORD TO LEARN IT • Hear the word pronounced aloud • See pronunciation, translation, and proficiency level • Save words to your vocabulary list with sentence context • Review with scientifically-spaced flashcards (FSRS algorithm) • Export to Anki for cross-platform review LISTEN TO DOCUMENTS READ ALOUD • Neural TTS — natural, human-like voices running entirely on-device • 8 English voice options (Kokoro 82M-parameter AI) • Sentence-by-sentence highlighting as you listen • Adjustable speed, sleep timer, background playback, lock screen controls • Coexists with background music — your podcast or playlist keeps playing • Completely offline — no streaming, no internet needed A READER YOU'LL ACTUALLY ENJOY • Preserves publisher styling: custom fonts, drop caps, chapter formatting • Footnote popups: tap any reference to read it inline • 5 reading themes: Light, Sepia, Dark, Calm, Slate • Premium typography: Charter, New York, Palatino, Athelas, Iowan Old Style • Upload your own .ttf/.otf fonts • Fine-tune font size, line spacing, margins, alignment, indent, bold text • Smart line-height adjusts automatically per display mode • All settings apply instantly IMPORT FROM ANYWHERE • EPUB, PDF, Markdown files, or any web URL • Share directly from Files, Safari, or any app via "Open with Jinshu" • 5 classic English texts included free • Duplicate detection prevents re-importing HIGHLIGHTS, NOTES & SHARING • Highlight text in 3 colors with continuous underline rendering • Add notes to any highlight • Copy quoted text with annotations preserved • Share quotes as beautiful image cards • Favorites and full-text search SYNC EVERYWHERE • iCloud — progress, favorites, highlights, vocabulary across devices • Rebuilt sync engine in 2.1 — reliable conflict resolution, no dropped data • LAN Transfer — send documents between devices over Wi-Fi (secured with session tokens) • No account required to start PRIVACY FIRST • No account required. No ads. No tracking. • Fully offline — dictionary, TTS, flashcards, everything. • Your documents stay on your device (or your iCloud). FREE VS PREMIUM Free: 8 EPUB imports, A1–A2 / HSK 1–2 / JLPT N5–N4 / TOPIK 1–2 annotations, 50 saved words, 2 themes, system TTS Premium: Unlimited imports (EPUB/PDF/MD/URL), all proficiency levels, unlimited vocabulary, Anki export, 5 themes, neural TTS, custom fonts, iCloud sync, LAN transfer Plans: Monthly / Yearly / Lifetime Terms of Use: https://jinshu.built4.fun/terms Privacy Policy: https://jinshu.built4.fun/privacy