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CLUSTER END-MESSAGING-QUANTUM · 4 ENTRIES · EARLIEST ENTRY 2025-06-08

Quantum-resistant secure messaging

This cluster consists of chat and messaging applications that emphasize post-quantum or quantum-resistant end-to-end encryption, with some also covering peer identity verification and user authentication. The dated history is too thin to read a shape from — only three dated entries exist before the index start, so the cluster predates the index or its members are undated. Traction leaders by activity signal are Pryvate: Encrypted Messenger, ThreatX, and Post-Quantum-End-to-End-Encrypted-Chat-Application, all with 0 stars.

Entry timeline

ENTRY TIMELINE

JUN 2025: 1AUG 2026: 1SEP 2026: 1OCT 2026: 1
JUN 2025OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 ai-built · 3 unlabelled

Operator · 3 hobby · 1 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 4 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01Post-Quantum-End-to-End-Encrypted-Chat-Application0★15 days—hobbyChat application that provides real-time end-to-end encrypted messaging with post-quantum key exchange and peer identity verification.
  2. 02ThreatX0★1 mo—hobbySecure messaging platform that provides quantum-resistant end-to-end encryption for real-time chat rooms and user authentication.
  3. 03Medusa-ox1★2 mo—hobbyEncrypted messaging app that uses hybrid post-quantum end-to-end encryption over a data connection instead of SMS, with onion routing and decoy access modes.
  4. 04securechat-quantum-shield0★1 yrabandoned—ai-builtMessaging application that encrypts conversations with quantum-resistant cryptography to protect user privacy.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.