Records everything.
Keeps nothing.
Always-on macOS meeting recorder with on-device voice fingerprinting. Audio deletes every night. Only structured data survives.
⚠ Public beta. Expect rough edges. Free while we shake them out.
Six architectural bets.
Not incremental improvements. Different assumptions.
Always-on
Runs silently from login. Scheduled calls, Slack huddles, the 3-minute chat where a decision gets made — all captured automatically.
VoicePrint — persistent identity
256-dim WeSpeaker embeddings. Confirm a voice once, FiftyX recognizes them in every future conversation — not just this session.
Ephemeral audio
Audio auto-deletes at end of day. Transcripts, summaries, and embeddings persist. Privacy by deletion, not encryption.
Calendar-aware
Nylas reads Google and Microsoft calendars. FiftyX knows who's expected and matches voices to attendees before you tag anyone.
No hardware needed
Uses your Mac's built-in mic — or AirPods, headset, whatever you already own. No pendant to charge. Nothing to forget.
Bring your own model
Claude, OpenAI, Gemini, or Grok — your key, your choice of cost and quality. Text-only payloads; audio never leaves your Mac.
Every step runs on your Mac.
Capture → VAD → transcription → diarization → summarization. Only the last step is optionally cloud, and only with text — never audio.
16 kHz mono
GPU-idle
30s chunks
on Neural Engine
Gemini · Grok
Best independently verified accuracy in the industry. Built on pyannote.audio — the most-cited speaker diarization framework in academic literature, from CNRS and peer-reviewed at Interspeech and ICASSP. Runs locally through Apple's Neural Engine.
How FiftyX compares.
| Dimension | FiftyX | Granola | Otter | Gong | Plaud |
|---|---|---|---|---|---|
| Always-on recording | Yes | No | No | Sales only | Hardware required |
| Speaker recognition | Persistent, on-device | Per-session | Per-session | Per-session | Per-session |
| Audio retention | Deleted daily | Stored | Cloud | Cloud | On device |
| Platform | Native macOS | Cross-platform | Web / mobile | Web | Hardware + app |
| Audience | Everyone | Everyone | Everyone | Sales teams | Everyone |
| Price | Free (beta) | Free · $12/mo | $17–40/mo | Enterprise | $159+ · $79/yr |
| LLM | Bring your own | Built-in | Built-in | Built-in | Built-in |
Your key. Your cost. Your choice of quality.
FiftyX calls the model provider directly — no backend proxy, no hidden middleware, no per-seat LLM markup. Swap providers anytime in Settings.
Only transcript text leaves your Mac. Audio never does.
We don't encrypt more. We keep less.
Deleted every day
Audio files auto-delete at end of day. Only transcripts and summaries persist — plain text, fully searchable, local to your Mac.
- Audio deleted at 00:00 (configurable)
- Pause anytime from the menu bar
- Retroactive deletion — "delete the last 5 min"
- App exclusions — Signal, WhatsApp, etc.
Audio never leaves your Mac
Transcription happens on-device via WhisperKit. When you use an LLM for summaries, only transcript text is sent — never audio.
- On-device transcription · WhisperKit
- On-device speaker diarization · pyannote + WeSpeaker
- Your API key, your choice of LLM provider
- Transparency dashboard shows every byte stored
Try it.
macOS 15 Sequoia or later, Apple Silicon. Notarized DMG, direct download.
Download for MacThis is a public beta. The pipeline is solid — capture, transcription, voice ID, knowledge graph all working — but the polish isn't finished and you'll find bugs. Auto-updates ship via Sparkle so fixes land within hours of being shipped. Free while we're in beta. Email hello@50x.ing when you find something broken.