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Meet and scan in person
The root of trust is human. You meet, open the app, and scan each other's code — like swapping keys in a park.
Post-quantum · End-to-end encrypted
Quantum-safe messaging built on in-person trust.
A calm, private way to talk. Trust begins with a handshake — not a company's servers.
Exchange keys in person. Message from anywhere.
No account No phone number Free
R
Rosa
Verified in person
Today
Met you by the oak tree — keys swapped. 🌳
Done. No server ever saw them.
So this is quantum-safe now?
Future-proof. ML-KEM-1024 + forward secrecy.
Message Rosa…
The shift
Most apps ask you to trust a server. We don't.
Today, your keys are exchanged through a company's machines — and today's encryption can be harvested now and broken later by quantum computers. We move trust back to where it belongs: between two people.
The old way
Trust the company
Keys travel through servers you can't see. And "harvest now, decrypt later" means today's messages aren't safe from tomorrow's quantum computers.
Meet in the Park
Trust the moment you met
You exchange keys face to face — a scan in a park, a café, anywhere. No server in the middle, and protected by post-quantum cryptography.
How it works
Three calm steps.
2
Keys stay on your device
Private keys are generated and held only on your phone. Nothing is uploaded — there's nothing for a server to leak.
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Message securely from anywhere
From then on, distance doesn't matter. Every message is end-to-end encrypted with post-quantum cryptography and forward secrecy.
Under the calm
Serious cryptography, quietly done.
Everything below is on by default. You never have to think about it.
Post-quantum
NIST-standardized algorithms resist tomorrow's quantum computers.
ML-KEM-1024 · ML-DSA-87Forward secrecy
Keys rotate every message with a Double Ratchet — past chats stay sealed.
FIPS 203 / 204No account
No email, no phone number, no profile to harvest. You are no one to the server.
Zero metadata signupSecurity-audited
The protocol and implementation are reviewed by independent experts.
Open to scrutiny Session fingerprint 9f2a c41d 77e8 b310 · ed5f 0a92 6c14 ff03 Verified in person
Early access
Come meet us in the park.
Android is available now. iOS is coming soon. Send a note and we'll get you set up — quietly, no account required.
Android APK available today · iOS waitlist open · meetinthepark@proton.me