EstudIA vs Language Mirror

Transform any PDF into a dynamic, intelligent, and accessible study tool. This app turns your documents into interactive content, allowing you to learn faster, more flexibly, and in a more personalized way. Convert your PDFs into audio Import any PDF file and generate high-quality audio from its text. Listen to your notes while exercising, commuting, or simply resting your eyes, keeping your learning active anytime, anywhere. Automatic generation of multiple-choice questions Based on the content of the PDF, the app creates multiple-choice questions designed to help you review and reinforce the most important concepts. These questions are generated intelligently to assess your understanding and strengthen your learning. Study at your own pace Play the audio as many times as you need. Review the tests to track your progress. Use your own documents and organize them however you prefer. Ideal for students and exam candidates Perfect for those looking for a more efficient way to study, combining traditional methods with audio learning and practice tests based on their own material. Privacy and security Your documents are processed exclusively to generate audio and questions. The app prioritizes the security and responsible use of your personal data.

Shadow a native speaker — not after them, at the same time. Language Mirror is a shadowing app for Korean and English learners. You import real audio, clip the phrases that matter, and speak simultaneously with the recording until your pronunciation stops being a translation and starts being a reflex. This is not listen-then-repeat. This is simultaneous shadowing — the method used by interpreters, polyglots, and serious language learners to internalize rhythm, intonation, and natural cadence. Language Mirror is built around it. HOW IT WORKS 1. Import audio from files, video, recordings, or the Share Sheet. 2. Create clips — select the exact phrases you want to shadow. 3. Shadow and speak — loop each clip and speak along at the same time as the native speaker. 4. Use Progression mode to automatically ramp from slow to natural speed across repeats — progressive overload, applied to your ear and your mouth. 5. Track your progress — play counts and position are saved per clip so you pick up where you left off. PROGRESSION MODE Start slow. End natural. Progression mode automatically ramps playback speed across repeats so you can shadow comfortably at first, then gradually match a native speaker's real pace. This is the arc: slow shadowing → comfortable shadowing → full-speed shadowing → fluency. BUILT FOR FOCUS - Clean, calm interface with minimal distractions - No feed, no streaks, no social pressure - Transcript alignment shows timed text as you shadow - Favorites and quick-resume from the Practice tab FOR KOREAN & ENGLISH LEARNERS Whether you're an English speaker drilling Korean drama clips or a Korean speaker shadowing English podcasts — Language Mirror is built for you. Bring your own material: K-drama clips, podcast segments, lecture recordings, song verses — anything with audio becomes a shadowing exercise. Works with any language. Korean and English are where we start. PRIVATE BY DESIGN - Fully offline after import - No account required - No data collection - Everything stays on your device