Chatelo is encrypted messaging with three-path peer rendezvous (LAN / Cloudflare Calls dead-drop / disclosed TURN). Each kit-to-kit message has its own contact graph stored under that kit's HKDF key. Hybrid post-quantum DTLS handshake protects against quantum break.
Calm-direct features. No growth-hack copy. Each one ladders to a specific patent claim and a specific line of source code.
LAN-local Multicast DNS first, then ciphertext-only edge dead-drop, then user-disclosed TURN. Operator-blind across all three.
Per-kit HKDF-encrypted contact graph. The operator does not know your friends list.
Quantum-resistant handshake. Even if classical Ed25519 is broken in 2030, your conversations are still safe.
The substrate. Local-only data, full encryption boundary, basic kit features. No ads, ever.
Coach AI on this kit. Cross-device sync via operator-blind P2P. Per-kit advanced features.
Everything in Plus + heavier Coach quotas, deeper drill-downs, cross-kit insight contributions.
Best-Deal Floor: pick 4+ kits Plus → automatic Plus Everything $14.99/mo. Pick 4+ kits Pro → automatic Pro Everything $29.99/mo covering all 20. Cryptelo always free. Family Pro $59.99. Founders Lifetime $599.99 once.
Signal is end-to-end encrypted but routes through Signal's servers. Chatelo's WebRTC P2P is operator-blind end-to-end.
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Chatelo is covered by U.S. Provisional Patent Application No. 64/041,821 and the May/June 2026 follow-on cluster. The substrate-locality covenant is a cryptographic property of the file format, not a marketing posture.