About Red Grid Tactical
Built by someone who needed it in the field.
Why Red Grid Exists
Red Grid Tactical was built in collaboration with active-duty and retired U.S. Army soldiers who have lived the gap between military-grade navigation tools and what civilian teams actually have access to. Military units have ATAK, DAGR receivers, and encrypted radio networks. A volunteer SAR team trying to coordinate a search in the backcountry? They get group texts that don't work without cell service.
The idea was simple: take the concepts that work in military operations and make them accessible to everyone. Real MGRS coordinates, not approximations. Encrypted peer-to-peer sync, not cloud-dependent tracking. Tools that work when infrastructure doesn't. No accounts to create, no servers to maintain, no subscriptions required just to see where your teammate is.
Red Grid started as a solo MGRS navigator (Red Grid MGRS) built to put DAGR-class precision in your pocket: the kind of grid accuracy that used to require a $2,500 military GPS receiver, running fully offline with no accounts, no analytics, and no tracking. Then came the question every team lead asks: how do I see where my people are? That became Red Grid Link, with its Field Link proximity sync engine. Two apps, one mission: give small teams the situational awareness tools that used to require military infrastructure.
Transparent Security
We believe security tools should be verifiable. The encryption in Red Grid apps uses industry-standard AES-256-GCM with ECDH P-256 key exchange. No proprietary black boxes. No security through obscurity. Every packet is encrypted with military-grade cryptography, and we publish detailed documentation of our security architecture so you can verify our claims.
Your data stays on your device. No analytics, no tracking, no cloud sync, no accounts. Field Link sessions are ephemeral. When you disconnect, the session data disappears. That's not a feature we advertise. It's a design principle.
What Powers Red Grid
React Native + Expo
Cross-platform framework delivering a single JavaScript codebase for iOS and Android. Native performance, consistent experience.
DMA MGRS Algorithm
Defense Mapping Agency TM 8358.1 compliant MGRS conversion with Vincenty formula for sub-millimeter geodetic accuracy on WGS84.
Meshtastic + BLE
LoRa mesh networking via Bluetooth Low Energy for off-grid position sharing. No cell service, no internet, no infrastructure.
AsyncStorage + Zero Network
Local-first data storage with no cloud dependency. Zero HTTP requests during normal operation. Your data lives on your device and nowhere else.
Put DAGR-Class Precision in Your Pocket
Red Grid MGRS is a zero-network, offline-first MGRS and land-navigation app for iOS and Android. No accounts, no analytics, no tracking. Try it free for 7 days on the annual plan, then $3.99/mo, $29.99/yr, or $199.99 once for lifetime access.