EchoCaption

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.