Record any conversation. Keep every word on your device.
Notes you'll actually re-read — a clean transcript with who said what, and the full audio kept so you can replay any moment. It all runs on your Mac, iPhone, or Apple Watch, so nothing leaves your device. Version 2.0 knows when your meetings start, tells you when a transcript is ready, and answers to Siri. Summaries are opt-in, and only the transcript text ever travels.
The difference is where your audio goes.
You leave with notes you'll actually re-read — every speaker labeled, the full audio kept so you can replay any moment, and files any AI can open. Most meeting tools get you there by shipping the recording to their servers. Synopsule does the whole job on the device that recorded it. No bot. No account. No upload.
The trade you're making, stated plainly: because nothing is uploaded, there is no sync between your devices and no cloud library. Your Mac and your iPhone each keep their own recordings, and you move a library with a backup file you make and restore yourself. The app is English only.
One app. Your Mac, your iPhone, your wrist.
These are real screens, not concept art. The same Synopsule runs on all of them. Install it once and it's on your desk, in your pocket, and on your wrist, with each device doing what it's best at.
Mac The full studio
Your Mac sees the most of any conversation.
- Records your mic and your Mac's system audio in separate lanes, and shows which are actually running
- Captures both sides of a Zoom, Meet, or Teams call, with no bot in the room
- A system-wide shortcut, ⌃⌥⌘R, starts and stops from any app
- Notices when a meeting app opens and offers to record
- Printing, drag-and-drop, and a recording in its own window
iPhone In your pocket
The same studio, wherever the conversation is.
- Records the room through the mic, transcribing live
- Shortcuts, Siri, the Action button, a widget, and a Control Center control
- A Live Activity on the Lock Screen and in the Dynamic Island while you record
- Set the speaker count first for sharper labels
- Share-sheet export — Word, PDF, Markdown, HTML, SRT, VTT, Obsidian, Apple Notes
Watch On your wrist
For the conversations your phone isn't in your hand for.
- Records on the watch, then hands off to your iPhone to transcribe
- Elapsed time stays legible on the always-on display
- A complication showing the running timer and anything still waiting to send
- Every transfer listed with its status, the reason it failed, and retry
- Speaker count set with the crown, and remembered
All Identical where it counts
One codebase, one install, the same promise.
- Whisper transcription that runs entirely on-device
- Recognizes returning voices and labels them — on-device
- Tap any line to play it; notes and flags you can edit long after
- Search that reads the transcript itself, not just the recap
- Templated, opt-in summaries — free on-device, your key, or Synopsule Pro
- Backup and restore, which is also how a library moves between devices
On the Mac
The full studio





- 01
Library, transcript, and summary — together.
Pick a recording on the left, read the labeled transcript in the middle, and an opt-in AI summary sits right beside it.
- 02
A directory of every voice.
Speakers follow people across your recordings — and Synopsule recognizes returning voices, labeling them automatically. Rename someone once and it updates everywhere — transcript, search, and exports.
- 03
Your mic and the call, in separate lanes.
Core Audio taps record your microphone and system audio independently — both sides of a Zoom, with no bot in the room.
- 04
Exports that fit where the work lives.
Word, PDF, Markdown, HTML, SRT, and VTT — or one tap into Obsidian or Apple Notes — with a live preview, and speakers and timestamps kept intact.
- 05
Local by default — and you can see it.
Recording stays on the device, the temporary capture is cleared after transcription, and summaries only run when you ask.
- 06
Find the moment across everything.
Search spans every transcript — the words people said, not just the recap — with
speaker:filters to jump straight to a voice.
On iPhone
In your pocket





- 01
Every recording in one place.
Starred, drafts, and the full archive — the people in each one shown at a glance.
- 02
See who said what.
Colored speakers, timestamps, and a tap-to-play waveform for any line of the transcript.
- 03
Notes and flags, as you record — or long after.
Jot time-anchored notes and drop a flag while you talk, then tap either later to seek right back to the moment. You can also add, rename, or delete them days later while reading. The live transcript runs underneath, and nothing leaves the phone.
- 04
Names that stick — and recognize.
Name a voice once and Synopsule recognizes that person in your next recordings on this phone, labeling them automatically — all on-device. Your Mac works the same way.
- 05
Find any moment.
Search across every transcript body, with
speaker:filters to jump straight to a voice — so a meeting you never summarized is still findable. - 06
Privacy you control.
An on-device model, an analytics toggle, and AI consent you can review or reset whenever you like.
Built for how conversations actually go.
Long calls. People talking over each other. A hallway chat you wish you'd written down. Synopsule turns all of it into a clean, searchable transcript, with exports that don't need a second app to fix up. Version 2.0 is the release where it stopped waiting to be opened.
Whisper, running on your hardware.
The transcript appears as you talk, accurate and fully offline. A Whisper model ships inside the app, so it works the moment you open it — then download a larger model, up to 1.5 GB, when you want every word right, and keep several on hand to switch between instantly.
- Transcribes out of the box — a model ships in the app
- Keep several model sizes, switch instantly with no redownload
- Works offline, always · built for hour-long sessions
- macOS 15+ and iOS 17+, tuned for Apple silicon
Capture the call, or the room.
On the Mac, Synopsule records your microphone and whatever is playing through your speakers in separate lanes, using Apple's Core Audio taps. No screen recording, no virtual driver, no bot in the meeting. On iPhone, it records the room through the mic: point it at the conversation and hit record. And the recording screen shows what is actually being captured right now — not what you once set in preferences — so a permission you never granted or a lane that failed to start says so before you rely on it.
- Mac: both sides of Zoom, Meet, or Teams, in separate lanes
- Mac: choose which input device, and start from anywhere with ⌃⌥⌘R
- iPhone and Watch: the whole room through one mic
- The capture state you see is the one you've got — degraded starts and errors are surfaced
It learns who's who.
When a recording finalizes, on-device diarization separates the voices — and Synopsule recognizes people it has heard before, labeling them automatically. Name someone once and the next time they speak, they're tagged for you. Correct a wrong guess and it learns. A bundled neural voice model does it all on-device, so the voiceprints never leave.
- Recognizes returning voices — matched lines show a “Recognized” chip
- Correct a speaker mid-recording; the fix survives finalization
- On-device neural voice model — voiceprints never leave
- Rename once; it propagates everywhere
Play it back, synced to the line.
Tap any line to jump straight to that moment. Change the speed, skip fifteen seconds either way, or drive the whole thing from the keyboard; the transcript follows the playhead as it goes. The waveform under it is drawn from your actual audio, so a quiet stretch looks quiet. Find walks you through the matches instead of hiding the lines between them, and a transcript-wide replace fixes a name the model heard wrong everywhere at once.
- Variable speed, ±15s skip, keyboard transport
- A waveform computed from the recording itself
- Find that steps through matches — plus find and replace
- Notes and flags you can add, edit, or delete at any time
Summaries when you ask — or the moment it's ready.
Pick a template — one-on-one, standup, sales call, interview, lecture, clinical SOAP, legal, or user research — and turn an hour of talk into a structured, speaker-aware recap with owners, tasks, and the questions still open. Press Summarize, or switch on automatic summaries and it happens as soon as analysis finishes. Re-run it and the action items you've already ticked stay ticked; switch templates and the recap you had is kept, not thrown away. Run it through your own key, on-device via Ollama or Apple Intelligence so nothing leaves, or Synopsule Pro.
- Automatic after analysis, if you turn it on — and off is the default
- Re-runs preserve your checked action items; template switching is non-destructive
- Your OpenAI, Anthropic, or Gemini key; on-device via Ollama or Apple Intelligence; or Synopsule Pro
- Export to Word, PDF, Markdown, HTML, SRT, VTT, the audio itself — or straight into Obsidian and Apple Notes
Summary
Locked the launch date for October. Engineering will stage the export redesign to fit; marketing starts long-lead comms immediately.
Action items
- Jordan — send updated risk register tonight
- Priya — draft customer comms by Thursday
- Maya — confirm launch date with leadership
It speaks first now.
Through 1.x, Synopsule waited to be opened. In 2.0 it reads your calendar — on the device, read-only, never written to — and offers to record the meeting that's starting, naming the recording after it. It tells you when a long transcript is finished instead of leaving you to check. On the Mac it notices a meeting app opening, and ⌃⌥⌘R starts a recording from wherever you are. On iPhone, Siri, Shortcuts, the Action button, a widget, and a Control Center control all reach it, and a Live Activity keeps the timer on your Lock Screen. Every one of these is off until you turn it on.
- Calendar-aware prompts that name the recording after the meeting
- Notifications when a transcript is ready, or a Watch recording lands
- Siri, Shortcuts, the Action button, a widget, a Control Center control, a Live Activity
- Import an audio file you already have and transcribe it like a recording
Record it? The recording takes the meeting's name.
52 minutes · 4 speakers · transcribed on this Mac
Hallway note · 3 minutes · transcribing now
A library that survives a year of meetings.
Sort it, filter it, tag it, select several at once, move through it from the keyboard. Recurring meetings collect into a series so a weekly standup reads as one thread. Every open action item across every recording gathers into one list, grouped by who owns it or when it's due. And Backup writes a plain ZIP of your recordings — one you can open with any unzip tool — which restores by merging rather than overwriting, so it's also the way to carry a library from a Mac to an iPhone.
- Sort, filter, tags, multi-select, keyboard navigation
- Recurring meetings grouped as a series
- Action items across every meeting, by owner or by due date
- Backup and restore that merges — and moves a library between devices
Action items · by owner
- Jordan — send the updated risk register (Launch review)
- Priya — draft customer comms (Weekly sync, 3 of 3)
- Maya — confirm the date with leadership (Launch review)
Privacy you can diagram.
Not a policy you have to trust, a data path you can follow. Here is everything that happens, and the one thing that can ever leave.
Mic captured to a temporary file. On Mac, system audio too. A Watch recording travels to your iPhone, not to a server.
Whisper runs locally. Speakers labeled on-device.
Raw capture deleted. Playback copy stays, delete it any time.
Calendar read on the device, never written to and never stored. Notifications are posted locally by the app.
Transcript text goes from the app straight to OpenAI, Anthropic, or Gemini. Synopsule never sees it.
Summaries route through our worker to OpenAI. No key to manage, and it works on every device.
Nothing syncs, because nothing is uploaded — you move a library with a backup file you make yourself. Read the full Privacy Policy.
Readable before it's pretty.
A transcript is a reading tool, so 2.0 went through all three apps and fixed what made them hard to read. None of this is a setting you have to find — the apps follow the ones you already set on your device.
Text that scales
Every font on iPhone and Apple Watch used to be a fixed size.
- Dynamic Type honoured throughout, up to the accessibility sizes
- Layouts that reflow instead of clipping when text grows
- Touch targets of at least 44pt
Colour that isn't the only signal
Speaker colour is how you tell voices apart while skimming, so it was solved rather than chosen.
- Eight speaker colours re-derived to stay apart under protanopia, deuteranopia, and tritanopia
- Distinct shapes per speaker when Differentiate Without Color is on
- Text held to AA contrast on every surface
Motion and VoiceOver
The ambient movement is decoration; the app works with all of it switched off.
- Reduce Motion honoured on Mac, iPhone, and Apple Watch
- VoiceOver gets real state, traits, and actions — not bare labels
- Progress, playback position, and speed are spoken as values, not left to a moving bar
Your transcripts, ready for any AI.
Export to Markdown and you have the format large language models read best — clean headings, labeled speakers, and timestamps, with nothing to tidy up first. Or, on Mac, let Claude, Codex, and ChatGPT read straight from your library through Synopsule's built-in MCP server. Your words, your tools — and the audio still never leaves the device.
# Launch Review
May 27, 2026 · 21m · 2 speakers · on-device
## Transcript
**Avery** · 00:00
Let's confirm the source separation before we publish the recap.
**Jordan** · 00:14
Speaker names update across every matching segment as soon
as the user confirms them.
## Summary
- Launch recap aligned; source separation confirmed.
- Exports carry clean timestamps and speaker labels.
- Structure a model reads on sight — headings, speakers, and timecodes, no copy-paste cleanup.
- Speaker labels and timestamps ride along, so the AI knows who said what, and when.
- It's just text. No lock-in and no special importer — paste it wherever you think.
Or skip the paste — let Claude, Codex, and ChatGPT read your library directly.
Synopsule ships with a built-in MCP server. Two clicks in Settings → Connect to AI Apps and your assistant can list, search, and pull any transcript on demand. Everything runs locally through the Synopsule app itself — there's nothing extra to download, nothing to update, and the connection is read-only. Audio never leaves the Mac.
- Claude DesktopOne-click install from Synopsule
- CodexApp, CLI, and IDE — one config
- Claude CodeOne terminal command
- ChatGPTDrag a Markdown export in, or tunnel
list_transcriptsRecent recordings with dates, durations, speakerssearch_transcriptsFull-text search with timestamped excerptssemantic_search_transcriptsSearch by meaning, on-deviceget_transcriptThe full Markdown for one recordingget_summaryJust the recap — summary, action items, follow-ups
Try: "What did we decide about pricing on last Thursday's call?" or "Search my transcripts for the Acme launch discussion and summarize what we agreed."
Or ask your meetings without leaving Synopsule.
Ask a question across your whole library and get an answer with receipts: every claim carries a citation, and opening one takes you to the moment in the recording it came from. Because the index now covers the transcript itself and not just the recap, it can quote what was actually said — including from meetings you never summarized. Your recent questions are kept so you can retrace a train of thought, and a running answer can be cancelled. Ask needs a summary provider configured, and Synopsule Pro is the one that reads long excerpts from several transcripts at once.
One purchase. Every device. Forever.
Synopsule is a one-time $1.99 on the App Store — the whole app, on your Mac, your iPhone, and your Apple Watch. Summaries are the only part with an optional subscription, and there are three ways to run them for nothing.
Synopsule
App Store · Mac, iPhone & Watch- On-device Whisper
- Mic + system audio on Mac
- Recording on iPhone and Watch
- Speaker labeling & rename
- Playback, notes, and flags
- Search across every transcript
- Every export format
- Calendar prompts & notifications
- Shortcuts, Siri, widget, Live Activity
- Backup and restore
Synopsule Pro
Optional · covers every device- Summarizes a whole hour in one pass, so a long meeting keeps its detail
- All nine templates return their own sections — Clinical SOAP, Legal, Sales Call, and the rest
- Ask your meetings answers from long excerpts across several transcripts, with citations
- No API key and no provider account to manage — billing runs through the App Store
What it costs you besides money: transcript text goes to the Synopsule service and on to OpenAI. The audio never does. The free on-device paths below keep even the text on your machine. Subscriptions renew until cancelled, and you cancel in App Store → Subscriptions.
Get Synopsule, then add Pro in the appThree ways to summarize without paying anything
No template is locked behind the subscription — every one of the nine is yours to pick on any path. These are not trial modes; they are how Synopsule is meant to work if a subscription isn't for you.
Transcript text goes from the app straight to OpenAI, Anthropic, or Gemini. You pay your provider for what you use, and Synopsule never sees the key or the text.
On a Mac, point Synopsule at a model running on your own machine. No key, no subscription, and even the transcript text stays put.
On Macs and iPhones with eligible hardware, summarize with Apple's on-device models. Long meetings are summarized in chunks rather than one pass, and you get a general summary whichever template you pick.
And if you never summarize at all, the app is complete without it — nothing leaves your device, ever.
The honest questions, answered.
Is it one purchase for Mac and iPhone?
Do my recordings sync between my Mac and my iPhone?
Is Synopsule available in my language?
What's different on iPhone?
What does the Apple Watch app do?
Can Synopsule recognize the same person across different recordings?
Where exactly does the audio go?
Do I need an account?
Does it really work offline?
Does the iPhone capture the other side of a call?
How is Synopsule different from cloud notetakers like Otter, Granola, or Fathom?
Can Claude, Codex, or ChatGPT read my transcripts directly?
--mcp, so there's nothing extra to download or update. It's local-only and read-only — transcripts stay on the Mac, and audio is never exposed. On iPhone, the same Markdown exports show up in Files for sharing into the ChatGPT or Claude iOS apps.Can I shape the summary to the kind of conversation?
Does it summarize automatically, or do I have to ask?
Do AI summaries send my audio away?
Does search look inside the transcript, or only at the summary?
speaker: filters, and searching by meaning covers the transcript body too — so a meeting you never summarized is still findable. That's also what lets Ask your meetings quote lines the transcript really contains and open at the moment they were said. The index is built on your device and rebuilds itself from your recordings if it's ever lost.Will it tell me when a long transcript is done?
Can it know a meeting is starting?
Can I start it with Siri, a Shortcut, or the Action button?
Can it transcribe an audio file I already have?
Is it accessible?
Can I get AI summaries without anything leaving my device?
What do I need to run it?
What formats can I export to?
How much does it cost?
Your next conversation, transcribed in a minute.
Get it on the App Store, grant the mic permission, pick a Whisper model, and press record. No sign-up. No upload. It works the same on your Mac, your iPhone, and your Apple Watch.
Get it on the App Store$1.99