# Theodolite HD vs Garmin Explore™

The clearest difference is review sentiment: Theodolite HD at 91% against Garmin Explore™'s 46%. Theodolite HD also leads on rating (4.7 vs 4.2) and iOS requirement (15.6 vs 18.4). Garmin Explore™'s advantage is price (Free vs $8.99) and in-app purchases (none vs 8). On ads and device support there is nothing between them.

Garmin Explore™ is free to download; Theodolite HD costs $8.99 up front. Theodolite HD sells 8 one-off in-app purchases. Garmin Explore™ asks for nothing beyond the download.

Theodolite HD holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Garmin Explore™ has 1.1K ratings behind it against 136, 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 46% of Garmin Explore™'s.

Theodolite HD ships an update every 4 months, Garmin Explore™ monthly. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Theodolite HD | Garmin Explore™ |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.7 (136 ratings)](https://appshunter.io/ios/app/theodolite-hd/id425456242/reviews)** | [4.2 (1.1K ratings)](https://appshunter.io/ios/app/garmin-explore/id1276675721/reviews) |
| Number of ratings | 136 | **1.1K** |
| Positive reviews | **91.4% of reviews** | 45.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#106** |
| Size | 30 MB | 452 MB |
| Requires iOS | **15.6** | 18.4 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Craig Hunter](https://appshunter.io/developer/286743884) | [Garmin](https://appshunter.io/developer/411046952) |

## 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


### Garmin Explore™

[App page](https://appshunter.io/ios/app/garmin-explore/id1276675721)

**Currently charting:** #106 Top Free · Navigation (US App Store)

Navigate off-grid with this app, which pairs with a compatible Garmin device for trip planning, mapping, and navigation even without Wi-Fi or cellular service. Plan routes, download maps for offline use, and sync data to the cloud.

**Highlights:** Off-grid navigation, Trip planning, Offline map downloads, Pair and sync with Garmin device, Activity library, Cloud storage, LiveTrack location sharing

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Excellent for planning routes and activities
- 💡 Great for offline navigation with downloaded maps
- 👍 Seamless integration with Garmin devices
- 👍 Useful for tracking and sharing adventures

**What reviewers complain about**

- 🐛 Sync issues with Garmin devices
- 🔍 Lacking detailed map options in some regions
- 🔍 Confusing interface and terminology
- 🐛 Crashes and performance issues
- 🔒 Requires login and internet connection for full functionality

**Reported bugs**

- Sync failures between app and Garmin devices
- Disappearing or corrupted user data
- Compatibility issues with newer iOS/Android versions
- Unreliable offline map downloads

**Requested features**

- Ability to edit waypoint coordinates
- More customization options for map layers and displays
- Improved route planning and navigation features
- Better syncing and data management between app and devices
- Support for more Garmin device models


## Frequently asked questions

### Is Theodolite HD free?

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

### Is Garmin Explore™ free?

Garmin Explore™ is free to download, with no in-app purchases.

### Which has better reviews, Theodolite HD or Garmin Explore™?

Theodolite HD is rated higher. Theodolite HD averages 4.7 out of 5 from 136 ratings, while Garmin Explore™ averages 4.2 from 1.1K ratings.

### Do Theodolite HD or Garmin Explore™ have ads?

Neither Theodolite HD nor Garmin Explore™ shows ads.

### Which is updated more often, Theodolite HD or Garmin Explore™?

Theodolite HD ships an update every 4 months, and Garmin Explore™ monthly. Most recently, Theodolite HD was updated on October 15, 2026 and Garmin Explore™ on October 21, 2026.

---

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