TerraTac is a field navigation and ballistics tool built for hunters, shooters, and backcountry travelers.
MAP & NAVIGATION
• MGRS/UTM coordinates and a live military grid overlay
• Outdoors, Satellite, Streets, and Hybrid map styles
• GPS trail recording with one-tap "track back" navigation along your recorded route
• Lensatic-style compass navigation to any saved waypoint, with true/magnetic heading
• Custom waypoint markers — target, pin, flag, crosshair, danger, camp
• Night vision mode (red-filtered display)
PUBLIC LAND STATUS
• Live BLM land-ownership lookup at your position or any saved waypoint
• Color-coded land status overlay with a legend (BLM, USFS, State/Local, NPS, Tribal, Private)
BALLISTICS
• Point-mass trajectory solver (G1 or G7 drag models) with MOA/MIL holds
• Range rings and a six-distance ranging card, centered live on your GPS position
• Save multiple gun/load profiles
• Live local weather lookup (temperature, humidity, wind, altitude) to correct your dope for actual conditions
• Wind drift calculation
• Target markers show real-time range, elevation hold, and windage as you move
TerraTac is a planning aid, not a survey or safety instrument. Phone GNSS is typically accurate to 5–30 m outdoors. Compass readings depend on your device's magnetometer and can be skewed by nearby metal or accessories. Ballistics are G1/G7 model estimates — confirm your zero with live fire. Land ownership data is approximate; always verify current local regulations before entering any area.
MGRS maps, live public-land status & G1/G7 ballistics with range rings.