On-device recording of calls and rooms
Captures microphone input and, on Mac, system audio in separate lanes so it can record both sides of a call without a meeting bot.
Synopsule
Synopsule is a Mac and iPhone app that records and transcribes conversations locally, with optional on-device summaries and exports for sharing notes outside the app. It is built for users who want speaker-labeled transcripts without sending audio to the cloud.
Overview
Synopsule is a Mac and iPhone app for recording, transcribing, and optionally summarizing conversations on your device. It is designed to produce readable meeting notes with speaker labels, full audio kept for replay, and open text files that can be used outside the app.
The product emphasizes local processing: transcription runs on-device, raw audio is stored locally and deleted after finalization by default, and summaries are opt-in. On the Mac it can capture microphone input and system audio separately; on iPhone it records the room through the microphone for interviews, lectures, voice notes, and similar conversations.
Features
Offline transcription with multiple model sizes
Runs Whisper transcription entirely on your device, with a model bundled in the app and larger models available for download.
Speaker labeling and voice recognition
Separates voices, labels speakers, and recognizes returning voices on-device so names can carry across recordings.
Replayable local audio
Keeps the full audio on the device so you can replay any moment from the transcript, rather than discarding the source recording.
Optional on-device summaries
Creates opt-in summaries on-device, using Apple Intelligence or your own key, and only sends transcript text when summaries are requested.
Flexible export options
Exports to Word, PDF, Markdown, HTML, SRT, and VTT, with one-tap sharing into Obsidian or Apple Notes.
Use cases
Meeting notes on a Mac
Record a Zoom, Meet, or Teams call on Mac, capture the microphone and system audio separately, and review the labeled transcript with the original audio still available.
Mobile conversation capture
Use an iPhone to record interviews, lectures, hallway conversations, or voice notes, then keep a searchable transcript with time-anchored notes and flags.
Track speakers across recordings
Save recurring speakers once so they can be recognized in later recordings on the same device, reducing manual cleanup across future transcripts.
Move notes into other tools
Export transcripts into formats that fit downstream editing or documentation workflows, including Markdown, Word, PDF, HTML, SRT, VTT, Obsidian, and Apple Notes.
Pros and Cons
Pros
- Transcription runs fully on-device, including offline use from the first launch.
- Audio stays on the device; raw audio is deleted after finalization by default.
- Speaker labels and returning-voice recognition are handled locally.
- The app supports useful exports, including Markdown, Word, PDF, HTML, SRT, and VTT.
- One purchase covers both Mac and iPhone, with no subscription shown on the pricing page.
Cons
- The core product is limited to Mac and iPhone, based on the pages provided.
- Optional AI summaries can involve transcript text leaving the device, so that workflow is not fully local.
FAQ
What does Synopsule do?
It records conversations on your Mac or iPhone, transcribes them on-device, and can create optional summaries without sending audio off the device.
Which devices does it support?
Synopsule supports Mac and iPhone. The page says one $1.99 purchase covers both devices.
Do I need an account or internet connection?
No account is needed for the core workflow, and transcription works offline from the first launch.
What file formats can I export?
Exports include Word, PDF, Markdown, HTML, SRT, and VTT, and the app can also share into Obsidian or Apple Notes.
Quick Facts
- Category
- Meeting transcription
- Platforms
- Mac and iPhone
- Pricing model
- One-time purchase
- Price
- $1.99
- Source domain
- synopsule.com
- Core workflow
- Record, transcribe, label speakers, export
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