Theodolite HD vs Global Mapper Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Theodolite HD
This app combines a compass, inclinometer, rangefinder, GPS, and map for augmented reality navigation. It allows users to capture data-overlay photos and videos, view positions on a map with offline options, and share location data with others. It's designed for professional use and outdoor activities.
- Augmented reality viewfinder
- Compass and inclinometer
- GPS and map with offline options
- Data-overlay photo/video camera
- Rangefinder and nav calculator
- Location sharing and team tracking
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Theodolite HD 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 (AR) 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 photos and movies with 2X-8X zoom. Overlay geographical data, angle markings, 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 image files self-contained data records. Third-party apps can tap into Theodolite's advanced camera functions with a camera sharing feature. View current position on the built-in map with optional offline Outdoors maps that include topo contours, 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 in the main viewfinder. 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 including team land surveying, accident investigations, spotting wild fires, triangulation of landmarks, and advanced tactical observation and targeting. With an optional in-app purchase to enable team tracking, you can share location with up to 20 people on Theodolite's map. Theodolite includes features for serious users like a reference angle mode, nav calculator, map marker import/export, manual and automatic data logging with CSV and KML export, clipboard integration, %grade display, mil compass readout, optical rangefinders (including a mil-based reticle, sniper-style stadiametric graphs, and a variable 4X-24X scope), and night filters to improve use in dark conditions. 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, Map Grid of Australia, 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. AR Layers include navigational aids like the sun, moon, planets, and Polaris (North star), and the optional US Mountain Summits layer that shows over 70,000 US mountain summits in the viewfinder. 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? Note: Theodolite HD is an iPad app -- see the regular “Theodolite” app for use on an iPhone or iPod Touch. And be sure to check out the all-new "Theodolite for Watch" and put Theodolite on your wrist!
Global Mapper Mobile
This application allows users to view and collect GIS data in the field using their mobile device's GPS. It supports various data layers and offers tools for drawing, tracking, and form-based data collection, with advanced features available through an in-app purchase.
- Vector, raster, and terrain data display
- GPS location display and feature creation
- Drawing, tracking, and form-based data collection
- Image capture and Picture Point creation
- Advanced GPS support for GNSS devices
- RTK correction via NTRIP client
- Offline data access and custom online sources
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Bring your GIS workflow to the field. Global Mapper Mobile® is a powerful iOS application for viewing and collecting GIS data. It utilizes the GPS capabilities of mobile devices to provide situational awareness and locational intelligence for remote mapping projects. A perfect complement to the desktop version of Global Mapper, the mobile app provides maps-in-hand functionality for engineers, surveyors, wildlife managers, foresters, and anyone whose job requires access to spatial data in remote locations. Global Mapper Mobile can display vector, raster, and elevation data layers that have been transferred from the desktop version of the software. It also provides tools for drawing, tracking, and form-based data collection using pre-configured attributes and picklists. Global Mapper Mobile Base Version (Free) The base version of Global Mapper Mobile is free of charge and provides an array of features and functions, including: • Vector, raster, and terrain data display • GPS location display • Point, line, and polygon feature creation using GPS location • Editing of existing vector features • Capture of images in the field • Creation of Picture Points from geotagged images • Attribute and feature notation recording for new or existing vector features • Online access to Open Street Map data Global Mapper Mobile Pro The Pro version of Global Mapper Mobile, available as an in-app purchase, supplements the functionality of the base version with an array of professional-grade tools, including: • Advanced GPS support for connection to high-accuracy GNSS devices from vendors such as Bad Elf, EOS, Juniper, and others • RTK correction via built-in NTRIP client • GPS Averaging • Terrain shader and water level display options • Custom online source options and online data saving for offline use • Simultaneous feature creation • Viewshed creation • Volume calculation • Data reprojection • Address searching • Geopackage and GeoPDF format support Global Mapper Mobile Pro is available as an in-app purchase. The license is based on an annual subscription from the date of purchase that can be renewed each year. Note: Continued use of GPS running in the background can dramatically decrease battery life. Privacy Policy: https://www.bluemarblegeo.com/privacy-policy/ Terms of Use: https://www.bluemarblegeo.com/licensing-policy/
Screenshots
Verdict
The clearest difference is review sentiment: Theodolite HD at 91% against Global Mapper Mobile's 29%. Theodolite HD also leads on rating (4.7 vs 3.7) and ratings volume (136 vs 15). Global Mapper Mobile's advantage is price (Free vs $8.99) and device support (3 vs 1). On update cadence, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Global Mapper Mobile is free to download; Theodolite HD costs $8.99 up front. Theodolite HD sells 8 one-off in-app purchases and Global Mapper Mobile sells 1 in-app purchase, starting at $49.99 per year. Whichever you choose, the download price is not the number that matters.
Theodolite HD holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Theodolite HD has 136 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 91% of Theodolite HD's written reviews are positive against 29% of Global Mapper Mobile's.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | Theodolite HD | Global Mapper Mobile |
|---|---|---|
| Price | $8.99 | Free — better |
| Rating | 4.7 (136 ratings) — better | 3.7 (15 ratings) |
| Positive reviews | 91.4% of reviews — better | 28.6% of reviews |
| Number of ratings | 136 — better | 15 |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 12.2 — better |
| Further details — not scored | ||
| Size | 30 MB | 126 MB |
| Age rating | 4+ | 4+ |
| Developer | Craig Hunter | Blue Marble Geographics |
Customer experience
Theodolite HD
Global Mapper Mobile
Bugs and requests
Theodolite HD
Reported bugs
2 issues- Occasional crashes or freezes, especially on older devices
- Camera orientation issues on some devices
Requested features
4 requests- Add option to set elevation angle to 0 degrees horizontal
- Implement cross-device sync and data sharing
- Expand map coverage and reduce in-app purchase costs
- Add support for more camera features like video recording
Global Mapper Mobile
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Theodolite HD
- 1,000 Outdoors Map Tiles$0.99
- Team Tracking$1.99
- World Datum Pack$2.99
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- US Mountain Summits AR Layer$2.99
- 5,000 Outdoors Map Tiles$4.99
- 10,000 Outdoors Map Tiles$8.99
- 20,000 Outdoors Map Tiles$17.99
- US State Plane Coordinates$24.99
Global Mapper Mobile
- Pro Module$49.991 Year
Questions
Is Theodolite HD free?
Is Global Mapper Mobile free?
Which has better reviews, Theodolite HD or Global Mapper Mobile?
Do Theodolite HD or Global Mapper Mobile have ads?
Which is updated more often, Theodolite HD or Global Mapper Mobile?
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