--- title: "EchoCaption — App Overview" url: https://marlvel.ai/intel-report/productivity/echocaption category: Productivity developer: Kai Chen platforms: ios rating: N/A (0 ratings) pricing: paid report_level: overview generated: 2026-05-05 last_verified: "2026-05-05T22:07:12.196Z" --- > **Key Insight:** EchoCaption differentiates itself by prioritizing user privacy through a fully on-device transcription workflow. | Metric | Value | |--------|-------| | Category | Productivity | | Rating | N/A ★ (0) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 1.0 | | Developer | Kai Chen | ## What is EchoCaption? EchoCaption is a productivity tool that provides on-device speech-to-text transcription for audio and video files. It enables users to view synced subtitles and export them in SRT, VTT, or plain text formats while maintaining data privacy. ## Key Features - **On-device Speech-to-Text**: Utilizes a Whisper-based model to perform fast transcriptions locally on the device. - **Video Playback + Captions**: Allows users to watch media files with perfectly synced subtitles. - **Export Subtitles**: Supports saving transcription results as SRT, VTT, or plain text files. - **Share Extension Import**: Enables direct file imports from Photos, Files, and other applications. ## Who is it for? Content creators, students, and language learners who require local, private transcription and subtitle generation. ## Links - [App Store](https://apps.apple.com/us/app/echocaption/id6757952392?uo=4) - [Full Intelligence Report](https://marlvel.ai/intel-report/productivity/echocaption) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/productivity/echocaption).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*