PaperPhone
Two self-hosted messengers for different threat models
Details
- External ID
- 1249126
- Source
- PH
- Company
- —
- Product
- PaperPhone
- Website domain
- producthunt.com
- Launched
- Sept. 15, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Messaging, Open Source, Privacy, GitHub
- Fetched at
- Sept. 17, 2026, 1:23 a.m.
- Updated at
- Sept. 17, 2026, 1:23 a.m.
Description
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.
Enrichment
- Theme
- niche social and community platforms
- Vertical
- Security
- Function
- Communication
- Audience
- Prosumer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- self-hosted messaging apps for secure communication
- Manually corrected
- False
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 — 29 launches clear the similarity bar, closest 8 shown.
Attention rank: #14 of 30 (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
- rawgram · ph · 2026-09-09 · 1 upvotes · similarity 0.40
- MessageLab · ph · 2026-09-15 · 2 upvotes · similarity 0.38
- AI Phone 360 · ph · 2026-09-19 · 2 upvotes · similarity 0.38
- Sisu_SSE-9 · github · 2026-09-13 · 10 upvotes · similarity 0.37
- SECRET — private messenger · ph · 2026-09-11 · 2 upvotes · similarity 0.37
- X2Chat · ph · 2026-09-23 · 1 upvotes · similarity 0.35
Other launches for this product
- No other launches for this product.