Theodolite is a multi-function viewfinder that combines a compass, two-axis inclinometer, rangefinder, GPS, map, nav calculator, and geo-overlay photo/movie camera into one indispensable app. Theodolite was one of the very first augmented reality apps when it was released in 2009, and it’s been downloaded and used by millions of customers since then. Uses are endless, and the app is great for land measurements, outdoor sports, sightseeing, navigation, and finding your way around. 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 camera images and movies, with 2X-8X digital zoom and fast image processing. You can overlay geographical data, date, time, author/company info, and project notes directly on photos and movies for later reference. The same data is written into the metadata record of images, making the image files self-contained image+data records. Third-party apps can tap into Theodolite's advanced camera functions with a new camera sharing feature.
View your current position on the built in map, with optional new offline Outdoors maps that include topo contours (feet or meters), roads, trails, landmarks, campgrounds, ski lifts, and more. Live map markers continually update distance/heading relative to the current location and also show wayfinding info on the main camera screen. You can draw polygons on the map to mark things like property boundaries and trails, and import/export polygon data via KML.
Share map markers and nav calculator points with other users of Theodolite via text messages or e-mail. This powerful capability opens up a wide range of collaborative uses which include team land surveying, accident investigations, spotting of wild fires, triangulation of landmarks, and advanced tactical observation and targeting operations.
Theodolite includes features for serious users like a reference angle mode, nav calculator, map marker import/export, data logging with CSV and KML export (via e-mail or iCloud Drive), system-wide clipboard integration, percent grade display, mil compass readout, optical rangefinders (including a mil-based reticle, sniper-style stadiametric graphs, and a variable 4X-24X scope), and colored lens filters to improve use in dark conditions and preserve night vision.
Theodolite can provide location in military grid reference system (MGRS) coordinates, Universal Transverse Mercator (UTM) coordinates, British/Irish National Grids, US National Grid, Maidenhead locator system, and six latitude/longitude formats. Optional US State Plane coordinates include SPCS27 and SPCS83 zones covering all US States. The optional Datum Pack adds over 230 geodetic datums to the app to improve position computation from GPS data, covering regions and countries on all continents around the world.
With an optional in-app purchase to enable team tracking, you can share location with up to 20 people on Theodolite's map. Team tracking was developed in conjunction with search and rescue experts to offer a good balance between simplicity and performance.
Theodolite has been shown in Apple Keynotes, featured on the App Store, and has been a #1 selling Navigation app in App Stores around the world. Since its introduction in 2009, Theodolite has defined augmented reality navigation. The app continually introduces new technologies, pushing the limits of iOS app development and taking advantage of new hardware capabilities.
Find out why Apple named Theodolite one of the most amazing apps available and showed it being used to explore the Great Wall of China. Where will you take it on your next adventure?
Theodolite requires an iPhone or iPod touch (see the “Theodolite HD” app for use on iPad).
Added an option for sequential naming/numbering of photo files in Preferences > Camera Options. Filenames will be of the format "THnnnnnn.JPG" where nnnnnn is an internal Theodolite photo sequence number. This will avoid the issue PC users were seeing with random alphanumeric filenames when importing photos, and let Mac users choose a sequential file name format if they prefer. This is now the default option, but users can change back to the more descriptive prefix/timestamp naming of files introduced with Theodolite 6.1. See the user manual for more info on photo file naming.
The map will now center and zoom on an imported polygon, and polygons now show a marker on the first point to aid visibility when zoomed out.
Added ability to import map marker and polygon KML files from the app's local documents folder (accessible from the iOS 11 Files app or iTunes on a Mac/PC). This will provide an import path for people who don't use iCloud Drive.
Ratings and Reviews
Great ap for construction and mapping
This is a great app, let me share an example; a small city i was employed at had just resurfaced most of the asphalt roads. I got a call from the boss about some truck leaking hydraulic fluid on our newly surfaced roadways. If you dont know hydraulic fluid is like a solvent for asphalt and creates holes and ultimately will lead to a failure in the road surface if the fluid leaks enough.
It was not long before i picked up the trail of the culprit, a local garbage truck , caught up to the driver of the leaky truck and informed him he was leaking hydraulic fluid and made him turn off his hydraulic unit and go back to his shop and to inform his boss of the occurrence. It wasn’t long before his boss contacted me and argued with me about the extent of the damages. I provided a map of the trucks route and pictures with times, gps locations. Argument over, but the boss wanted to know how i recorded this stuff. Showed him the ap and i think ,he’s a customer too. I know all the guys on my engineering staff purchased this ap and use it to record all kinds of data, great ap
This is my favorite app. I most recently used it to find a Forest fire that had gotten within 3.1 miles of us. I took photographs at various places in the burnt area and then plotted the location on a Quadrangle map.
But my main use is to record the location of petroglyphs in remote ( and not so remote sites) in the far west of the U.S. And Canada. Of course in some places satellite connection cannot be made but most of the time it can be. Not only do I get the time and the longitude and latitude and elevation, but also the azimuth. This latter is important because by adding 180 degrees to the reading I can tell what direction the petroglyph is facing. By placing a measuring graphic near the subject the theodolite photo also displays the size of the petroglyph. The theodolite record is redundant because I usually take more photographs with
a camera, which includes the time and sometimes the coordinates, but never the azimuth or elevation. This along with iPhone Notebook allows me to travel lighter and scramble in the rocks more safely.
Excellent tool for navigation and documenting important places
This app is both fun and useful. If you ever need to show exactly where something is, or show that you did that job out in the back forty, this app will provide a photo which includes all the information you can possibly imagine- exact latitude and longitude, bearing, altitude, time, date, inclination in 3 dimensions. In principle someone else could very nearly stand in your exact footprints to see the scene, based on the photo.
Another useful function is as a Sight Level. I put some bright tape on a tree or the side of the house at my eye level. Using this app I can move around and if I can see the tape I can tell within an inch or so my elevation relative to the tape. This helps with landscaping my yard, for example.
So if you are a contractor, forester, or investigator, this would do a nice job for you.
I use this app with Boy Scouts, not only for a handy compass bearing, but also for questions like, “If that tree were to fall, would it hit my tent?” (Hint: 45 degree vertical inclination). Or, “How side is that river?” (Classic map & compass exercise.)
I cannot evaluate the accuracy of the measurements (apps are notorious for displaying way more accuracy than they really can achieve), but they seem good for my purposes. If you have a boat with good navcom, check the accuracy and let us know!
I use it a lot and like it a great deal, and yes, it IS a great deal at this price!
- Craig Hunter
- 7.2 MB
- Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
- Age Rating
- Rated 4+
- © 2009-2018 Hunter Research and Technology LLC
- In-App Purchases
- Datum Pack $2.99
- 5,000 Map Tile Credits $0.99
- Team Tracking $0.99
With Family Sharing set up, up to six family members can use this app.