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About this app

UNIUN is a social knowledge graph — a place where your notes, conversations, and ideas stay connected instead of disappearing down a timeline.

Most social apps are built to be forgotten. A post scrolls by, a thread moves on, and the context behind a decision is gone. UNIUN is different. Every note, reply, and reference becomes a node in a living map of what you know and who you know it with.

WHY UNIUN

• Local-first: Your notes, profile, saved items, channel messages, and settings live on your device — not on a server we control.
• You own your identity: Your account is a cryptographic key pair. Your private key never leaves your device's secure keychain.
• No forced algorithm: A clean, readable feed with no engagement tricks and no ads deciding what you see.
• Notification-free by design: Come back when you want to, not when an app pokes you.
• Open and decentralized: Built on the open Nostr protocol. Add your own relays, bring your own backend, and stay in control of your data.

WHAT YOU CAN DO

Feed — See notes like a living feed. Updates stay simple, readable, and connected to people.

Channels — Organize people into public and private spaces. Channels, saved notes, groups, and DMs are easy to move through.

Threads — Follow every idea back to its source. The story doesn't vanish when a conversation moves forward.

Graph — Watch your knowledge connect. Saved, owned, and draft notes form a map of what matters.

Shiv (on-device AI) — Ask questions from your own notes. Shiv runs entirely on your device and understands the connected context behind what you've saved. No note content is sent to any external AI service.

Conversation Tree — Trace questions, answers, and replies as structure. AI output becomes part of your knowledge network too.

PRIVATE BY DEFAULT

• Direct messages are end-to-end encrypted using the Nostr NIP-17 standard.
• On-device AI means your knowledge never leaves your phone.
• You decide what stays private and what you publish to the public network.

BUILT ON THREE IDEAS

• Brahma — Create: Write notes and connect new ideas.
• Vishnu — Share: Share your notes across the network and discover what others are thinking.
• Shiv — Reflect: Ask questions from your own connected knowledge graph.

UNIUN is local-first, open source, and built around ownership and user control. Your data. Your keys. Your graph.
Social knowledge graph. Local-first notes, channels & on-device AI.
Updated on
Aug 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Fix issues with natraj and uniun cloud