# Theodolite HD vs Global Mapper Mobile

The clearest difference is review sentiment: Theodolite HD at 91% against Global Mapper Mobile's 38%. 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.

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 38% of Global Mapper Mobile's.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Theodolite HD | Global Mapper Mobile |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.7 (136 ratings)](https://appshunter.io/ios/app/theodolite-hd/id425456242/reviews)** | [3.7 (15 ratings)](https://appshunter.io/ios/app/global-mapper-mobile/id1097875766/reviews) |
| Number of ratings | **136** | 15 |
| Positive reviews | **91.4% of reviews** | 37.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 126 MB |
| Requires iOS | 15.6 | **12.2** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Craig Hunter](https://appshunter.io/developer/286743884) | [Blue Marble Geographics](https://appshunter.io/developer/424089128) |

## What reviewers say

### Theodolite HD

[App page](https://appshunter.io/ios/app/theodolite-hd/id425456242)

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.

**Highlights:** 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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1,000 Outdoors Map Tiles | $0.99 | one-time |
| Team Tracking | $1.99 | one-time |
| World Datum Pack | $2.99 | one-time |
| US Mountain Summits AR Layer | $2.99 | one-time |
| 5,000 Outdoors Map Tiles | $4.99 | one-time |
| 10,000 Outdoors Map Tiles | $8.99 | one-time |
| 20,000 Outdoors Map Tiles | $17.99 | one-time |
| US State Plane Coordinates | $24.99 | one-time |

**What reviewers like**

- 🚀 Intuitive and easy to use
- 🔍 Accurate measurements and data
- 📷 Useful photo documentation features
- 🧭 Versatile for various applications
- 🏫 Great for educational and teaching purposes

**What reviewers complain about**

- 🔍 Occasional compass/sensor accuracy issues
- 💰 Expensive in-app purchases for maps and features
- 📱 Separate iPhone and iPad versions require double purchase
- 🔄 Lack of screen rotation support on some devices

**Reported bugs**

- Occasional crashes or freezes, especially on older devices
- Camera orientation issues on some devices

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/global-mapper-mobile/id1097875766)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Module | $49.99 | per year |


## Frequently asked questions

### Is Theodolite HD free?

Theodolite HD costs $8.99, and also offers in-app purchases.

### Is Global Mapper Mobile free?

Global Mapper Mobile is free to download, with in-app purchases available.

### Which has better reviews, Theodolite HD or Global Mapper Mobile?

Theodolite HD is rated higher. Theodolite HD averages 4.7 out of 5 from 136 ratings, while Global Mapper Mobile averages 3.7 from 15 ratings.

### Do Theodolite HD or Global Mapper Mobile have ads?

Neither Theodolite HD nor Global Mapper Mobile shows ads.

### Which is updated more often, Theodolite HD or Global Mapper Mobile?

Theodolite HD ships an update every 4 months, and Global Mapper Mobile every 4 months. Most recently, Theodolite HD was updated on November 1, 2026 and Global Mapper Mobile on November 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*