Polyscript

Dual subtitles + natural AI translation on YouTube, Netflix, Disney+ & more. Learn any language — even Ancient Greek — by watching.

Learn a language by watching what you already love. Polyscript — Language Learning with Dual Subtitles Turn the videos you already watch into language practice. Polyscript adds interactive dual subtitles to the streaming sites you use every day: see the original line and your translation together, tap any word for meaning and pronunciation, and save vocabulary to review later on web, mobile, or your watch. • Dual subtitles with word-by-word readings (pinyin, romaji, and other scripts) • Tap-to-translate any word, with dictionary and pronunciation • Save words while you watch; review them anywhere with Polyscript • Automatic translation routing for 100+ languages • Works with the major streaming platforms' built-in subtitles Learn from real shows, at your pace, without leaving the player. ━━━━━━━━━━━━━━ 🎬 DUAL SUBTITLES ON EVERYTHING YOU WATCH See the original line and your translation together, styled your way — font size, position, and languages switchable mid-episode. When a platform already has subtitles in your language, Polyscript uses them automatically for perfect accuracy. 🗣️ HEAR YOURSELF SPEAK FLUENTLY — BEFORE YOU CAN Polyscript clones your voice and speaks any subtitle line with it, in perfect accent and rhythm. Then Shadow Coach hands you the mic: repeat the line and close the gap between you and the fluent you. That's not sci-fi — that's your daily practice loop. 📜 LIVE TRANSCRIPT, ALWAYS IN SYNC A scrolling transcript follows every line of dialogue. Missed something? It's right there. Never lose your place again. 🔤 HARD SCRIPTS, MADE READABLE Pinyin over Chinese. Romaji over Japanese. Romanization for Korean, transliteration for Sanskrit and beyond — with smart word segmentation so you can see where words begin and end. 📖 TAP ANY WORD Click a word in the subtitle for an instant dictionary and grammar breakdown — yes, even Latin and Ancient Greek morphology. 🏛️ LANGUAGES NO ONE ELSE SUPPORTS Hundreds of modern languages — plus the ones mainstream platforms ignore: Ancient Greek, Classical Latin, Sanskrit, Biblical Hebrew, Classical Arabic, Classical Chinese, Old English, Old Norse, Gothic, Aramaic, Sumerian, Akkadian. Watch a thriller in Latin. Seriously. ✂️ CLIP IT, CAST IT Turn any line into a shareable clip, or cast your session straight to the TV. 📌 SAVE THE MOMENT, STUDY ANYWHERE Bookmark a scene on your laptop, pick it up on your phone. Your vocab, settings, and progress follow you on every device with one Polyscript account.