EchoLines

Press play on any podcast episode or audio file and EchoLines turns the speech into time-synced subtitles in the original language, highlighted word by word, with a translation underneath. Loop any sentence until you catch every word. Turn on shadowing and EchoLines pauses after each line so you can say it yourself. Or listen blind first, then reveal the text to check what you heard. Subscribe to podcasts or import your own audio. There's no sign-up, and your audio never leaves your device. SUBTITLES FOR YOUR PODCASTS AND AUDIO • Podcasts, lectures, audiobooks, voice memos: if you can import it, EchoLines can caption it. • Subtitles appear a few seconds after you press play and stay ahead of the audio. • The current sentence is highlighted word by word, karaoke style. • If a podcast publishes its own transcript, EchoLines uses it and translates it. • Japanese audio can show hiragana above the kanji, or romaji if you prefer. • Show and episode titles come with a translation underneath. • Six subtitle themes, each in light and dark, and export to SRT or VTT. PRACTICE SENTENCE BY SENTENCE • Loop a single sentence until you catch every word. • Shadowing: EchoLines pauses after each sentence so you can repeat it out loud. • Record your shadowing and compare your words and intonation with the original. • A-B repeat for any stretch of audio. • Hide the original or the translation to test yourself. • Look up words in the system dictionary and save sentences to review later. PODCASTS AND YOUR OWN AUDIO • Search and subscribe to podcasts, with suggestions in the language you're learning. • New episodes can download automatically, and a play queue keeps the next one ready. • Import audio from Files, other apps, or a computer on the same Wi-Fi. • Prepare subtitles for a whole episode ahead of time. PRIVATE BY DESIGN • Speech recognition and translation run on your iPhone or iPad with Apple's on-device frameworks. • No account and no server of ours. Your audio and shadowing recordings never leave your device. • iCloud sync keeps your shows, playback positions and saved sentences in step across your devices, in your own iCloud account. You can turn it off. On iPad, a sentence panel sits beside the subtitles and keyboard shortcuts control playback. On iPhone Duo, the open phone shows the subtitles and the sentence panel side by side. Supports the languages offered by Apple's on-device speech recognition and translation.