Modern apps like Theodolite (iOS) offer professional-grade capabilities:
: Measures the device's tilt (roll and pitch) to determine slope and vertical angles. Manual Theodolite App
The app functions as a multi-tool for field data collection, combining several instruments into a single interface: Manual Theodolite App
: Overlays geographical data, crosshairs, and measurement reticles directly onto the live camera feed. Manual Theodolite App
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