PaperPhone
Two self-hosted messengers for different threat models
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PaperPhone is an AGPL-3.0 messaging family from an independent Chinese developer. Plus combines encrypted messaging, native desktop/mobile clients, social features and 100-person meetings. Lite takes a smaller Tor-only approach with no clearnet fallback, hybrid X25519 + ML-KEM-768 key agreement, an optional local privacy password, and eight on-device text-appearance modes. Both editions are designed for straightforward self-hosting.
PH · launched Sep 15, 2026 · 1 upvote (top 69%) · 0 views
Niche: private and secure messaging apps · 144 launches, 10 in the last 7 days ▼ -41% · Explore this niche →
Category and tags
- Horizontal
- Communication
- Prosumer
- Not AI
- Hobby / open-source project
- Messaging
- Open Source
- Privacy
- GitHub
Visit website ↗ Source listing ↗
More like this: all 144 launches in private and secure messaging apps →
Could you build this?
No Building secure, custom peer-to-peer messengers implementing advanced cryptography (post-quantum ML-KEM-768, X25519) and Tor hidden service routing requires specialized cryptographic and distributed systems engineering.
What it would actually take: Building PaperPhone requires deep cryptographic engineering to implement hybrid post-quantum key agreement schemes (X25519 + ML-KEM-768), double ratchets, and zero-knowledge identity proofs. The network layer requires embedding Tor (via Arti or C-Tor bindings) for peer-to-peer rendezvous without clearnet leakage, alongside custom WebRTC/SFU topologies for low-latency 100-person group calls over encrypted tunnels. Rigorous memory safety (Rust/Go), formal protocol verification, and independent cryptographic audits are mandatory to make such privacy claims credible.
Competitors
Other products that read as similar to this one : 66 launches clear the similarity bar, closest 8 shown.
Attention rank: #50 of 67 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 201 days after the earliest competitor.
- QTPhone · ph · 2026-09-09 · 1 upvotes · similarity 0.45
- Terminal Phone · hn · 2026-02-26 · 322 upvotes · similarity 0.42
- Papaerchaiapp · ph · 2026-10-25 · 1 upvotes · similarity 0.41
- rawgram · ph · 2026-09-09 · 1 upvotes · similarity 0.39
- One to One Secret Chat · ph · 2026-10-20 · 1 upvotes · similarity 0.38
- AI Phone 360 · ph · 2026-09-19 · 2 upvotes · similarity 0.38
- MessageLab · ph · 2026-09-15 · 2 upvotes · similarity 0.38
- CryptoNotes · ph · 2026-10-30 · 1 upvotes · similarity 0.37
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.