Echoin: Listening Practice

Echoin turns your own audio into focused English listening practice. Import an audio file from the Files app, transcribe it on your iPhone with an on-device Whisper model, and practice one sentence at a time. WHAT YOU CAN DO - Import your own audio files - Generate time-synced sentence transcripts on device - Follow the current sentence while listening - Tap any sentence to jump to its audio position - Repeat a single sentence or an entire lesson - Edit, save, and export optional LRC files - Use background audio playback and a sleep timer - Choose from built-in and optional transcription models PRIVATE BY DESIGN No account or login is required. Audio, transcripts, word timestamps, and LRC files stay on your device. Echoin does not upload your audio or transcript. Tiny and Base models are included and can be used offline. Small and Large models are available as optional downloads when you want higher transcription accuracy.