RangeFinder is a practical measuring tool that estimates the distance to an object by combining angular bearings from two observation points and the measured separation between them. The app guides you to record the compass direction to the object, walk to a second point while the pedometer counts steps (adjustable with Step + and Step -), then take a second bearing; RangeFinder uses geometric calculations to compute the distance. This approach lets you measure distances in the field using only your phone's sensors, with on-screen tips to improve accuracy and a workflow suited to on-site use.
⭐ Measures angles from two points to an object and computes distance using geometry.
⭐ Uses compass bearings to record directions to the object and to the second point.
⭐ Built-in pedometer counts steps between points with Step + and Step - adjustment controls.
⭐ Inclination and rotation indicators show when the device is held level (green at ~0°) for better readings.
⭐ Provides guidance on baseline selection (recommended roughly 90° offset) and distance ratios for accuracy.
✅ No special equipment required—uses the phone's compass, accelerometer and step sensor to perform triangulation.
✅ Adjustable step counter lets you correct stride-based distance for greater precision when walking between points.
✅ Visual leveling feedback (inclination and rotation) helps you maintain correct device orientation for reliable measurements.
✅ RangeFinder’s workflow is straightforward and practical for on-site distance estimates when carrying bulky tools isn’t possible.
❎ Accuracy depends on proper compass calibration and keeping the device perfectly level during measurements.
❎ Requires walking to a second observation point and a sufficient baseline length; most reliable when the baseline-to-target ratio is between 1:1 and 1:50.
❎ Pedometer-based distance can introduce error if stride length varies or steps are miscounted.
