EchoCaption

Turn any audio or video into captions instantly. On-device transcription, synced playback, and export to SRT/VTT for sharing and editing.

EchoCaption helps you generate accurate captions from audio and video—then play them back with perfectly synced subtitles.

Whether you're studying, creating content, or saving meeting notes, EchoCaption keeps everything private with on-device transcription and fast subtitle tools.

Key Features

On-device Speech-to-Text: Fast transcription powered by a Whisper-based model

Video Playback + Captions: Watch videos with synced subtitles

Export Subtitles: Save results as SRT / VTT or plain text

Share Extension Import: Send files from Photos, Files, or other apps straight into EchoCaption

Clean & Simple UI: Focus on your content, not complicated settings

Perfect for

Captioning videos for social media

Language learners practicing listening

Students transcribing lectures

Creators turning clips into subtitle-ready files

Privacy EchoCaption runs transcription on device. Your media stays on your iPhone/iPad.