Market Research

Ecosystem Survey

This is a non-profit, community-driven project. The goal is not to compete — it's to bring people together in real life using their mobile devices. We actively seek to join existing open-source projects or build upon their work rather than reinvent the wheel. The projects below are potential collaborators, upstream dependencies, or communities to contribute to.

Active Apps

Briar — Offline-first encrypted messenger

BitChat — BLE mesh + Nostr messaging

Bridgefy — Offline mesh messaging SDK

Berty — P2P messaging over BLE + IPFS

Manyverse — SSB client for mobile

Planetary — SSB client for iOS

Cwtch — Metadata-resistant messaging

Proximity Social (Adjacent Space)

Blue Social — BLE-based social discovery

Offline (University of Toronto) — BLE proximity matching

Genie Connections — Bluetooth dating

Happn — Proximity dating

Privacy-Focused Messengers (from awesome-privacy research)

SimpleX Chat — No-identity encrypted messaging

Session — Decentralized, no phone number required

Matrix / Element — Federated open communication

GrapheneOS — Hardened Android OS

New Entries: P2P Frameworks & Tools

p2panda — Modular p2p protocol framework

Quiet — P2P team chat over Tor (Slack/Discord alternative)

Cabal — Offline-first group chat

Meshtastic — LoRa mesh communication

Failed / Discontinued Apps

Yik Yak — Anonymous proximity social network (2013–2017)

FireChat — Mesh networking social app (2014)

Next2Friends — Bluetooth social network (2008)

Decentralized Social Networks (Broader Ecosystem)

These don't target proximity but represent the broader movement away from centralized platforms:

Bluesky / AT Protocol

Mastodon / Fediverse (ActivityPub)

Research Projects

Amigo — Secure group mesh messaging (2025)

Rumble — Delay-tolerant microblogging

Market Size Data

Decentralized Social Networks

Messaging Security

End-to-End Encrypted Communication

Encrypted Messaging Apps

Key Insights

  1. Real demand exists: Bridgefy's 12.5M users and BitChat's instant 10K beta waitlist prove people want offline/mesh messaging
  2. Crisis-driven spikes: Protest movements and internet shutdowns drive massive adoption bursts (FireChat, Bridgefy). Design for sustained use, but be ready for crisis onboarding
  3. Cold start problem: Every proximity app struggles with "who's nearby when nobody uses it yet?" — mitigate by ensuring the app is useful for existing contacts (messenger) even before discovering strangers
  4. Privacy claims vs. reality: Bridgefy's audit failures show that marketing privacy is easy, delivering it is hard. Open source + independent audits are essential for credibility
  5. Timing is right: BLE is universal, post-quantum crypto is available, decentralized social is mainstream (Bluesky at 43M users), and trust in centralized platforms is at historic lows
  6. Yik Yak warning: Anonymous + local + public = disaster. Our design avoids this: communication is private, contacts are intentional, and there's no public broadcast
  7. Build with, not against: Berty/Wesh, Briar, and p2panda are open-source projects with overlapping goals. Contributing to or building on these communities is preferred over starting from scratch
  8. Non-profit alignment: Several of these projects (Briar, Cwtch/Open Privacy, p2panda) are run by non-profits or research groups with similar values — natural allies
  9. SSB ecosystem is declining: Both Manyverse (creator left) and Planetary (pivoted to Nostr) signal that SSB may not be the right foundation for new projects. The concepts are sound, but the ecosystem lacks momentum
  10. Security audits are rare: Only Briar (Cure53, 2017) and Bridgefy (Royal Holloway, 2023) have published third-party audits. This is a gap across the entire ecosystem — and an opportunity to differentiate by commissioning early audits

Updates (2025–2026)

Briar — Steady Releases, v1.5.17 Confirmed

Briar maintained a steady release cadence: v1.5.14 (February 2025), v1.5.15 (December 2025), and v1.5.17 (March 2026), confirming the version and date already listed on this page. Briar Mailbox reached v1.0.9 in August 2025. Desktop work continues with v0.5.0-beta adding private group support. No new public security audit has been announced since the 2017 Cure53 review. Source: Briar Project website.

SimpleX Chat — v6.x Growth

SimpleX Chat shipped a steady stream of v6.x releases throughout 2025, reaching v6.4.11 (March 2025) on the stable channel and opening a v6.5 beta series (January–April 2025) that introduced public channels backed by user-run chat relays, ~30% memory reduction, voice messages on desktop, and a "knocking" flow for group admins to vet new members. The repository reached approximately 10,900 GitHub stars by April 2026, up from ~8,000 cited on this page. Source: simplex-chat/simplex-chat releases.

BitChat — Security Concerns Remain Unresolved

No independent security audit of BitChat has been published as of April 2026. Dorsey added a disclaimer to the GitHub repository shortly after launch: "Do not use it for production use, and do not rely on its security whatsoever until it has been reviewed." Researcher Alex Radocea publicly disclosed a broken identity authentication system allowing attacker-controlled devices to impersonate users. The app moved to the Apple App Store in late July 2025 despite these open issues. Sources: TechCrunch, permissionlesstech/bitchat — reinforces that BitChat should not be treated as a production-safe upstream dependency.

p2panda — v0.2.0 and Local-First Group Encryption

p2panda shipped v0.2.0 (January 2025) with improved offline-first sync behaviour — bidirectional log-sync, graceful live-mode reset after connectivity loss, and dynamic mDNS rebinding. In February 2025 the team published design documentation for p2panda-encryption, a standalone Rust crate implementing local-first group encryption using the DCGKA protocol and a CRDT membership layer. A security audit by Radically Open Security was underway with NLNet funding. Sources: p2panda v0.2.0 release, group encryption announcement.

Bluesky — Growth Moderating

⚠ Note on existing content: The page states 43 million users as of March 2026. Multiple independent trackers place the figure closer to 40–42 million at that date — the 43M figure may be slightly optimistic. Bluesky entered 2025 with roughly 30 million registered users and daily active users stabilised around 3.5 million as of November 2025. Sources: Skyscraper growth statistics, BluePilot 2026 outlook.

Nostr — Activity Levelling Off

As of late 2025, Nostr's growth had stalled after a period of rapid expansion. The ecosystem counts over 140 client applications but daily active user figures remain modest (roughly 3,600–4,000 DAU). Lightning Network address adoption within Nostr profiles grew 82.5%, indicating the protocol is consolidating around a Bitcoin-payments niche. Source: Glukhov.org — Nostr overview and statistics, October 2025.

New Entrant — Offline (University of Toronto)

A University of Toronto student team launched Offline in September 2025, a proximity-matching social app using BLE to surface nearby users based on shared interests without GPS location sharing. While a research project rather than a production tool, it demonstrates ongoing independent interest in the BLE-proximity social pattern central to our vision. Source: The Varsity.

Market Size — Methodology Note

Independent research firms continue to publish widely divergent estimates for the decentralised social network market, reflecting differing scopes. The figure cited on this page ($18.5B in 2025) aligns with Future Market Insights; other firms place the 2025 baseline between $2.9B and $9.4B with CAGRs of 20–23% through 2034–2035. The spread reflects methodology differences rather than factual contradiction. Sources: market.us, Future Market Insights.