Every feature and improvement in AI Shadowing, newest first. Built in the open by one person — read the story.
Follow-up questions for AI explanations
August 2026
Ask follow-up questions after any AI explanation. Clicked a word, got the explanation, still confused? Now there's a chat box right in the explanation panel — ask for more examples, a comparison with a similar word, or why the grammar works that way. The AI remembers the context of your conversation. Works on web and Android.
Much faster page load. We parallelized how the app boots and stopped downloading resources you don't need. First visit is seconds faster; repeat visits are near-instant.
Smoother explanation panel. Dragging the AI panel across the video area no longer stutters.
Difficulty levels & personalized recommendations
June 2026
Every video gets a CEFR difficulty level (A1–C2), computed from real speech rate, sentence length and vocabulary — so you can pick videos that match your level instead of guessing.
Personalized video recommendations. Tell us your level and interests once; the home page suggests real YouTube videos worth shadowing, graded by difficulty.
Instant transcripts. Subtitles now appear immediately and are AI-refined progressively as you play — no more waiting for the whole video to process.
Redesigned Android app with bottom navigation (Learn / Library / Me), the same recommendation feed as the web, and share links that open directly in the app.
Your own audio, synced everywhere
May 2026
Import your own audio and video files (MP3, MP4, even ZIP batches) — transcribed right in your browser, with the same shadowing interface as YouTube videos.
Cross-device library sync. Sign in and your imported lessons follow you between browser and phone.
Natural text-to-speech playback for any sentence or word.
Initial public release
April 2026
Paste any YouTube URL → clean sentence-by-sentence transcript with precise timestamps.
Click any sentence to loop it; click any word for an instant AI explanation in your native language.
Adjustable playback speed (0.5×–2×) and configurable pause between sentences.
Video library and history with Google or email sign-in. Free, no signup required to try. 11 languages.