Four new applications have been added to our Mobile Apps page based off of recommendations from participants of the 2020 WTREX. The new additions include Theodolite, Dioptra, onX Hunt, and Storm Radar. Theodolite and Dioptra are both useful for taking detailed photo points. OnX Hunt is a mapping application with layers that include private lands boundaries. Storm Radar is a weather app that can also display predicted future radar. If you find an app useful that is not already on our list, email us at [email protected].

Theodolite

Theodolite is a pro grade app and is used extensively by surveyors, geologists, architects, engineers, competitive sportsmen, first responders, military personnel, and search and rescue workers around the world. Theodolite lets you take data-overlay photos and movies
iPhone

Dioptra

Dioptra is a camera position and angle measurement tool for navigation, surveying, positioning, and measurement. Dioptra provides the following information like a theodolite optical instrument – compass, pitch indicator (tilt degrees), roll indicator (tilt degrees), GPS position, azimuth and bearing to photo subject
Site – Android

onX Hunt

Use onX Hunt as a fully functioning free GPS on your phone. OnX includes public and private land boundaries, aerial imagery with 24k topo, roads and all trails, offline maps, custom waypoints, waypoint sharing, and tracking (route, distance, and time). Basic option is free. Annual subscription cost for Premium and Elite options.
Site – Android – iPhone

Storm Radar

Storm Radar is your NOAA forecast, weather radar and hurricane tracker with severe weather alerts. Stay safe and informed through rain and severe weather using 8 hours past to future radar, live wind speed, NOAA radar and tornado updates.
Android – iPhone