Core communication

• Peer-to-peer messaging — Direct chat over Bluetooth and Wi‑Fi Direct (MultipeerConnectivity).
• Mesh networking — Messages relay through other devices to reach people beyond direct range.
• Store & forward — Messages are stored locally and delivered when the recipient comes in range.
• Group conversations — Chats with multiple nearby peers.
• Broadcast channels — Send to all connected peers at once.

Message types

• Text — With emoji support.
• Voice notes — Record and send compressed audio.
• Images — Send photos with optional compression.
• Location — Share your coordinates.
• Polls — Interactive polls in conversations.
• Files — Send files peer-to-peer.

Unique features

• Mesh network map — Live view of mesh topology: nodes, signal strength, relay paths.
• Signal radar — Radar-style view of nearby peers by distance and signal strength.
• Emergency SOS broadcast — One-tap alert that spreads through the mesh; hold-to-send to avoid accidental triggers.
• Walkie-talkie mode — Push-to-talk real-time audio to connected peers.
• Dead drops — Geo-tagged, encrypted messages at a location for others to find.
• Message relay stats — See hop count and relay path for each message.
• Stealth mode — Hide from discovery while still receiving messages.

Security & privacy

• End-to-end encryption — Curve25519 key exchange and AES-256-GCM (CryptoKit).
• No servers — Everything stays on devices; no accounts or cloud.
• Biometric lock — Face ID / Touch ID to open the app.
• Secret conversations — Extra encryption for sensitive chats.
• Message verification — Digital signatures so you can verify who sent a message.

Chat features

• Message reactions — 12 emoji reactions per message.
• Reply threading — Reply to a specific message with context.
• Message forwarding — Forward messages between conversations.
• Disappearing messages — Auto-delete after a set time.
• Pinned messages — Pin important messages in a chat.
• Read receipts — Delivered and read status.
• Typing indicators — Real-time typing status.
• Message search — Search by content in conversations.

Customization

• 7 themes — Mesh Dark, Mesh Light, Cyberpunk, Ocean Depth, Forest, Midnight, Aurora.
• 5 bubble styles — Modern, Classic, Minimal, Neon, Glassmorphic.
• 32 avatar emojis — Emoji-based avatars.
• 10 color options — For your identity in the mesh.
• Custom bios — Short profile text visible to peers.

Network & relay

• Auto-relay toggle — Choose whether your device relays for others.
• Configurable max hops — Limit how far messages relay (1–20 hops).
• Network health monitor — Live mesh health percentage.
• Relay statistics — Messages relayed, peers discovered, network stats.
• Peer trust — Mark trusted peers (e.g. verification badges).
• Peer blocking — Block specific peers.

Voice & calls

• Voice calls — Audio calls over the mesh (via AudioCallService).
• Walkie-talkie — Push-to-talk real-time audio (already listed above).

Technical

• iOS 17+ — SwiftUI, physical device required for Bluetooth/MultipeerConnectivity.
• Local persistence — Conversations and data stored on device (e.g. JSON in Documents).
• Keychain — Keys stored in iOS Keychain.