A passion project
Your meetings and notes
don't deserve to be on the internet.
Cocoon is one person's answer to an industry that normalised sending your most private conversations to distant servers. No VC funding. No ads. No servers. Just open-source AI that lives entirely on your device — one step toward a future where privacy and intelligence go hand in hand.
Powerful features,
completely private
Everything you need to understand and act on your meetings — all on your device
Smart Recording
Record meetings with one tap. Live waveform shows exactly what's being captured.
AI Summaries
Instant summaries in multiple tones — professional, casual, brief, or detailed.
Live Transcription
Real-time speech-to-text with speaker detection. Search across all your meetings.
AI Chat
Ask questions about your meetings. "What decisions were made?" "Any action items?"
Quick Notes
Capture voice memos in seconds. Auto-categorized as Ideas, Reminders, or Todos.
Export & Share
Export to PDF, Markdown, or plain text. Share via Messages, Email, or any app.
How Cocoon works
From recording to insights — powered by advanced on-device AI
01
Record
Tap to start recording. Watch the live waveform as audio is captured securely on your device.
02
Transform
AI instantly transcribes your meeting with speaker detection. Review in real-time or later.
03
Understand
Get smart summaries, extract action items, and chat with your transcript. All offline.
Powered by open-source AI
Battle-tested open-source models — no proprietary black boxes, no cloud, no internet required
Whisper Base
Recognizes speech as accurately as a human transcriptionist — even with accents, background noise, and fast speakers.
SmolLM3 3B
Reads your entire meeting, writes sharp summaries, extracts action items, and answers questions — all offline.
Metal GPU Acceleration
Apple's graphics chip runs AI up to 10× faster than CPU. Your summary is ready before the meeting ends.
Meta LLaMA
Meta's open-source language model powers deep meeting understanding — summaries, decisions, and action items, fully on-device.
Memory Smart
Loads only what is needed, when needed. Runs smoothly on iPhone 13 without hogging memory or draining battery.
Requires iPhone 13 or later with iOS 16.0+
Recommended: iPhone 14 Pro+ with 6GB+ RAM and 5GB+ free storage
Frequently asked questions
Everything you need to know about Cocoon
Cocoon processes all audio and generates summaries entirely on your device using Metal GPU acceleration. Your conversations never leave your iPhone — not for recording, transcription, summarization, or analysis. There are no servers, no cloud processing, and no data transmission.
Ready to keep your
conversations private?
Download Cocoon and transform how you capture and understand meetings — completely offline.
4.9 on the App Store
100%
On-Device
Zero
Cloud Upload
None
Account Needed