MeshLink
Chat without internet
Item Description
MeshLink — Communicate Without the Internet
Stay connected when the grid goes down.
MeshLink is an offline mesh messenger for iOS. It uses Bluetooth and Wi-Fi Direct to build a peer-to-peer mesh network between nearby devices—no internet, no cell towers, no servers. Messages hop from device to device so you can reach people even when they’re not in direct range.
Why MeshLink?
Works when nothing else does — Festivals, remote areas, power outages, or disasters. If phones can see each other, MeshLink can connect them.
No accounts, no cloud — No sign-up, no email, no central servers. Your data stays on your device and on the devices of people you choose to talk to.
Private by design — End-to-end encryption (Curve25519 + AES-256), optional Face ID/Touch ID lock, and “secret” conversations for sensitive chats.
Built for emergencies — One-tap SOS broadcast that spreads through the whole mesh so nearby peers can see and respond when you need help.
What you can do
Chat — Text, voice notes, images, location, polls, and files, with reactions, replies, and read receipts.
See the network — Mesh Map shows who’s connected and how messages flow; Signal Radar shows nearby peers and signal strength.
Talk in real time — Walkie-talkie push-to-talk and voice calls over the mesh.
Control your presence — Stealth mode, relay on/off, max hop limit, and blocking so you decide how much you participate.
Who it’s for
Preppers & outdoors — Reliable comms when you’re off-grid or in the backcountry.
Events & communities — Crowds, festivals, or campuses where cell networks are slow or overloaded.
Privacy-focused users — People who want messaging without accounts or central servers.
Families & groups — Local coordination and emergency alerts without depending on the internet.
Features
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.
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Information
| Category | App Templates / iOS |
| First Release | 14 March 2026 |
| Platforms | iOS 13 |
| Files included | .swift |
| File Size | 1 MB |
| Frameworks | iOS |
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