Red Grid Link
ATAK Alternative · Team GPS
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your team. Your grid. No cell towers. No servers. No accounts.
ATAK costs nothing but demands a TAK Server, Android-only deployment, and an IT team to run it. Red Grid Link delivers the core capabilities — encrypted team position sharing, MGRS-native navigation, offline maps, and tactical reports — on any iPhone, with zero infrastructure. Open the app. Start a session. Your team appears on the map.
Built by an active duty Army officer for SAR teams, hunting parties, backcountry groups, and civilian units that need blue-force tracking without the bureaucracy.
FIELD LINK — ENCRYPTED TEAM SYNC:
Devices within Bluetooth range auto-discover each other and share encrypted positions, waypoints, and markers in real time.
- AES-256-GCM encryption with ECDH P-256 ephemeral session keys
- Live position updates every 5-30 seconds (battery-adaptive)
- Cross-platform: iPhone and Android in the same session
- Zero pairing, zero configuration, zero accounts
- 2-device free tier, up to 8 devices with Pro+Link
MGRS NAVIGATION:
Live 10-digit Military Grid Reference System precision — the same coordinate system used by NATO forces worldwide.
- 4/6/8/10-digit MGRS display (1-meter precision)
- MGRS grid overlay at all zoom levels
- Magnetic declination (WMM model)
- NATO phonetic voice readout for hands-free grid calls
OFFLINE MAPS:
Download topographic regions over WiFi. Navigate completely offline. USGS Topo and OpenTopoMap coverage with MGRS grid rendering at every zoom level.
EMERGENCY BEACON:
One-tap SOS sends your GPS to every teammate. Full-screen alert with distance and bearing. Retransmits every 30 seconds until cancelled.
TACTICAL MESSAGING:
8 pre-canned tactical messages plus free text. HELP, STOP, RALLY ON ME, ALL CLEAR, and more. One tap to send across the team.
TEAM ROLES & COORDINATION:
- Assign Lead, Scout, Medic, Comms, or custom roles with callsigns
- Share waypoints with the team or keep them private
- Draw boundaries and get alerted when anyone crosses them
- Drop markers for hazards, rally points, objectives, or caches
- Ghost markers show last-known positions when teammates go out of range
11 TACTICAL TOOLS:
Dead Reckoning, Two-Point Resection, Pace Count, Back Azimuth, Coordinate Converter (MGRS / Lat-Lon / DMS / UTM / FixPhrase), Range Estimation, Slope Calculator, ETA / Speed, Magnetic Declination, Celestial Navigation, MGRS Precision Reference.
AFTER-ACTION REPORTS:
One-tap PDF export: map snapshot, mission timeline, per-member tracks, markers, team roster, and boundary events.
4 TACTICAL DISPLAY THEMES:
Red Light (night vision safe), NVG Green (night observation device compatible), Day White (high visibility), and Blue Force (tactical blue display).
4 OPERATIONAL MODES:
One engine, four presentation layers. Terminology and quick actions adapt to your mission: Search & Rescue, Backcountry, Hunting, or Training.
ZERO FOOTPRINT PRIVACY:
- No accounts, no sign-up, no login
- No cloud, no servers, no analytics, no tracking, no ads
- Location data stays on your device
- Field Link data is ephemeral — nothing persists after the session ends
- All team communication encrypted with AES-256-GCM
PRICING:
- Free: 4 modes, 2-device team sync, 1 map region, Red Light theme, 11 tools
- Pro ($3.99/mo or $29.99/yr): All 4 themes, unlimited maps, After-Action Reports
- Pro+Link ($5.99/mo or $44.99/yr): Pro + 8-device team sync
- Lifetime ($149.99, one-time): All Pro+Link features forever
Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage subscriptions in Settings > Apple ID > Subscriptions.
Terms: https://redgridtactical.com/terms.html
Privacy: https://redgridtactical.com/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
RED GRID LINK IS NOW PART OF RED GRID MGRS
Every Pro feature in this app is now unlocked, free: all four themes, unlimited offline map regions, After-Action Report export, and 8-device Field Link sessions.
Link stays on your device and keeps working, but this is the final update. New development, including encrypted team awareness on an offline map, continues in Red Grid MGRS.
The developer, Estus Holdings LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Estus Holdings LLC
- Size
- 37.9 MB
- Category
- Navigation
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Red Grid Tactical
