Android app and Chrome extension

Chrome extension: repeat sentences right on YouTube

Open a YouTube video in Chrome on a computer and a list of the caption sentences appears beside it. You practice the video you are already watching, without importing it first.

• Repeat one sentence (shortcut R), repeat a range from A to B (Q and W), or shadow (S). Shadowing pauses after each sentence for as long as it takes to say it back.
• Choose how many times to repeat (endlessly, or a set number before moving on) and the playback speed.
• Blind listening (H) hides the panel captions so you listen by ear alone.
• Click a sentence to jump to it, double-click to fix a typo. For finer editing, such as splitting and merging sentences, one button opens the caption editor of the web studio.
• If you are signed in at shadoweng.com, your caption fixes are saved to your account and the videos you practice are added to your library.
• "Continue on phone" shows a QR code. Point the camera of a phone with the Android app at it and you continue from the same sentence.

Install from the Chrome Web Store ↗

Installation and permissions

• It works in Chrome on a computer. It cannot be installed in a phone browser.
• It is free. You can practice with YouTube captions without signing in; connecting to your library needs a sign-in.
• The only sites it can read are youtube.com and shadoweng.com, and its only other permission is browser storage.

Android app: carry on from your phone

Sign in with the same account as on the web and pick up the videos and progress from your library on your phone.

• Repeat listening, speaking along with recordings you can compare to the original, and A-B range repeat, built so you can pick both points precisely with a finger.
• Song practice that repeats lyrics line by line.
• Dictation made for a phone screen, AI practice you answer by speaking, and expression card review with reminders.
• Browse the videos other members have shared and start studying them straight away.
• The app can be shown in 10 languages.
• Recordings stay on the phone and are sent only when you ask for a pronunciation assessment or a transcription.

Get it on Google Play ↗

What the app leaves to the web

• Caption timing, typo fixes, and splitting or merging sentences are done on the web. On a phone the app only lets you report a caption problem; on a tablet the editing tools appear when the screen is large enough.
• Payments and subscriptions are managed on the web.
• There is no iPhone app yet.

Using them together

• Computer: practice with the extension while you watch YouTube. Videos you practice while signed in collect in your library.
• Phone: keep listening and speaking along with the app on the go.
• Web studio (https://shadoweng.com): polish captions, do AI practice and look at your learning record.