OSHI Mesh

OSHI is a free, open-source encrypted messenger built in Switzerland for people who refuse to depend on cell towers, big tech, or anyone's permission to communicate. Whether you're hiking off-grid, traveling abroad, preparing for an emergency, or just done with surveillance — OSHI keeps you connected, oriented, and informed without ever needing a signal.

SURVIVAL-READY — OFFLINE
- Mesh networking via Bluetooth and Wi-Fi Direct — message anyone within range, no internet, no SIM, no cell tower
- Multi-hop relay so messages travel through nearby OSHI users
- Built-in offline maps for 42 European countries + cities worldwide
- Turn-by-turn navigation with car, walking, and cycling modes
- 12 POI categories: pharmacies, hospitals, water, fuel, food, ATMs, shelters, transport
- On-device AI assistant (Apple Intelligence) — ask anything, no servers, no leaks
- Auto-downloads your region on first launch so you're prepared before you need it

PRIVACY FIRST
- End-to-end encryption with the Double Ratchet (Signal Protocol)
- AES-256-GCM authenticated encryption on every message
- No phone number required — your identity is your cryptographic key
- No email, no account, no central server can ever see who you talk to
- Zero metadata collection — we don't even know you exist

ON-DEVICE AI
- Full conversational AI powered by Apple Intelligence
- 100% on-device — no requests leave your phone
- Multi-turn memory, contextual answers, suggestion chips
- Available on iPhone 15 Pro and newer (iOS 26+)

ENCRYPTED VOICE & VIDEO CALLS
- Voice and video calls with FaceTime-grade quality (AAC-ELD)
- End-to-end encrypted with AES-256-GCM
- Forward Error Correction for clean audio over weak links
- Peer-to-peer when possible, relayed when not

COVERT COMMUNICATION
- 6 steganographic channels to bypass censorship
- Image steganography (LSB embedding)
- Text steganography (zero-width, homoglyphs)
- Web mimicry, DNS tunneling, domain fronting
- Automatic channel selection based on network conditions

MORE
- Group chats with admin controls
- Disappearing messages with custom timers
- Voice effects to mask identity
- Bot platform (Telegram-style)
- 16 languages, dark mode
- Fully open source on GitHub — audit it yourself

OSHI is built for hikers, journalists, activists, travelers, preppers, and anyone who believes private communication is a right, not a feature. Download it now — and the next time the signal drops, the network goes down, or the borders close, you'll already be ready.