Buster Studios
TerraTac / Android

A Buster Studios app / TerraTac

Field context,
in one view.

TerraTac is a free Android field app for MGRS/UTM maps, live BLM/public-land status, and G1/G7 ballistics with range rings.

MGRS
READY

Made for the field

Maps, land, and dope — close at hand.

Where am I? What kind of land is this? How far is that? TerraTac keeps map, grid, and ballistic planning in one place.

  • MGRS/UTM military grid
  • Live BLM/public-land status
  • G1/G7 ballistics with range rings
  • GPS track-back and night vision

Know the limits: Phone GNSS is typically ~5–30 m; compass readings can be affected by metal; ballistics are model estimates — confirm zero with live fire; land data is approximate — verify regulations.

A better field stack

Try TerraTac on Android.

Free with ads. Verify the app output against real-world conditions and official information.

Open Google Play ↗