Hunter Research and Technology, LLC

App Ranking: 4.5
From 1,381 Ratings

Theodolite App Description & Overview

***** 40%-OFF SALE ***** Theodolite is on sale for 40%-off to celebrate its six year anniversary! ***** As seen in Apple's Special Event Keynote, Theodolite is a multi-function viewfinder for iPhone and iPod touch that combines a compass, two-axis inclinometer, rangefinder, GPS, map, nav calculator, tracker, and geo-tag photo/movie camera into one indispensable app. Uses are endless, and the app is great for hiking, boating, hunting, golf, outdoor sports, sightseeing, navigation, and finding your way around. Theodolite 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 geo-tagged camera images, screenshots, movies, and screen movies directly from the app, with 2X and 4X digital zoom and fast buffered saves. You can choose to overlay geographical data, time, date, and custom notes directly on photos and movies for later reference. View your current position on the built in map view, with optional new Outdoors maps that include topo contours (feet or meters), roads, trails, landmarks, campgrounds, ski lifts, and more. Custom "live" map markers continually update distance/heading relative to the current location. Share map markers and nav calculator points with other users of Theodolite and Theodolite HD via SMS text messages and 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, a nav calculator, data logging, e-mail export with KML, 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. The app can provide location in military grid reference system (MGRS) coordinates, universal transverse Mercator (UTM) coordinates, British/Irish National Grids, US National Grid, 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 for more accurate position and altitude 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 teams to offer a good balance between simplicity and performance. Theodolite has been featured several times in iTunes in "Rewind: Hot Trends in Apps", "The World Around You", and "New and Noteworthy". It 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. 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 or iPad mini). Note: GPS and compass requires an iPhone. iPod touch devices do not have GPS or compass hardware. *** iPhone 6S and 6S Plus customers -- if you are having issues with your compass, please update to iOS 9.2. This corrects a severe bug in the magnetometer data on these devices. ***
Theodolite 5 is our biggest new release ever, with many new features and improvements. Here are some of them: * Fully compatible with iOS 10, iPhone 7, iPhone 7+ * In-app purchase for offline Outdoors maps with topo contours (feet or meters), roads, trails, landmarks, campgrounds, ski lifts, and more. * In-app purchase for US State Plane Coordinates. SPCS27 and SPCS83 are included for all US state zones. * Addition of US National Grid position formats with 10/100/1000 meter precision. * New datums added to Datum Pack: GDA94, GGRS87, JGD2000, ETRS89, NZGD2000. * Distance/heading to active selected map marker show on main display along with aim indicator arrows (lower left). * Sweeping azimuth sight line added to map pointer. * Status indicators for position and altitude now blink to indicate GPS activity and glow steady to indicate GPS lock. * Hardware status screen now updates accuracy numbers in realtime. * Position activity/lock indicator (spinning wheel) shown on current location map pin. * Smoother location updates on map screen. * Revised map marker popups for more display area to show long coordinates/names. * Added search format selection buttons to map search bar. * Improved finger tracking response of 4X-24X variable rangefinder reticle. * Revised floating crosshair reticle target to track horizon (previously was a pendulum). * Addition of camera tags to KML when using main screen mail export. * Dramatically sharper optical quality on main screen when using zoom. * Option to add note to a log entry. * Added datum code to log entries. * Fixed UTM position search issues. * Corrected behavior of UTM and MGRS coordinates when legacy datums (NAD27) are used. * Added description of datum to photo/movie data overlay. * Fix for bug in altitude computations affecting some datums. * Improvements to rangefinder rendering. * Addition of photo EXIF tags including app name and elevation/horizon angles. * Dual usage of WGS-84 coordinates for proper compatibility with map content and data export formats when running an alternate datum. * Dozens of interface tweaks and improvements throughout the app. Thanks to our amazing customers whose feedback and suggestions over the past six years have helped make Theodolite a great app! We appreciate your support.

Theodolite App Tips & Tricks

Theodolite Screenshots

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Theodolite Video

Theodolite Comments

Theodolite Reviews

  • Love this app so I hope they do an update again soon!

    By Draconian Arcane
    Great features just needs a recent update every once in awhile!!
  • Great freakin app!

    By Berg5150
    Wow what a good app. Most favorite by far! Great job by the developer.
  • Oregon

    By Oregon fire guy
    Awesome APP! Next step would be to integrate a topo map.
  • Great app

    By BHunted
    But we are over due for an update to get it to specs.
  • Very Useful

    By Cougrick
    I have used this app many times to document infrastructure items in the electric utility industry. Elevation is particularly helpful.
  • Total Ripoff

    By Squirrels & Bacon
    I saw an ad for this in Backpacker magazine and was interested in the topo map overlay. The description indicates that this does indeed have outdoor maps. So I shell out $5.99, download the app, then look for outdoor maps. Oh guess what?! THEY CHARGE EXTRA FOR MAPS AND YOU PAY FOR EACH SECTION SEPARATELY! Gee thanks HTR for not telling us up front that maps cost extra. Avoid this app at all costs. I just wasted $5.99. Don't be fooled with this app - go somewhere else. I'll never support this company again. Cmon guys at least be open about what costs money so we know what we get or don't get.
  • Fascinating & fun

    By WTadPf
    And a good pedagogical tool (I teach surveying)
  • Where are you?

    By Fishdoctor2
    Great app to provide you detailed information on your location relative to the surroundings. Also great for documenting photographs that need location information as part of a record. Highly recommended.
  • Crashes current iOS version.

    By JuneauB
    I used to love this app, but twice now it has totally crashed my phone and rendered it unusable. It drains the battery in such a way that the phone acts as if it were totally dead. I started using it at a 75% charge and within 5 minutes my phone said it was out of battery and would not turn back on. Once I plugged my phone in it then said that the charge level was at 67%. Strange right? DO NOT PURCHASE THIS APP UNTIL THERE IS A UPDATE!! I will be looking for a replacement for this one as soon as I submit this review.
  • Compass doesn't work

    By Alexander543
    Running iPhone SE, iOS 10.0.2, the compass does not work despite correctly functioning in google and apple maps. Slowly rotating the phone around for 360 degrees, I only observe an azimuth range between 330 and 60 deg. A full 270 degrees are essentially never touched despite trying all possible angles of holding the phone.
  • Broken with iOS update

    By GillyGillyGilly123
    I love this application. It has been my go to for quite a while for figuring distance and bearing. But it quit working with the latest Apple update. I hope there are plans to update this awesome app. The compass swings around 90 degrees and will no longer show true bearing.
  • Invaluable

    By Brf7
    I am a licensed land surveyor and use this app all the time to take photographs of survey monuments for my records. I love the app!