# Theodolite vs Eos Tools Pro

Theodolite and Eos Tools Pro both sit at 4.7 stars, but that hides the real split: 88% of Theodolite's written reviews are positive against 38% of Eos Tools Pro's. Theodolite also leads on ratings volume (902 vs 9) and chart position (#7 vs unranked). Eos Tools Pro's advantage is price (Free vs $8.99) and in-app purchases (none vs 8). On rating, ads and device support there is nothing between them.

Eos Tools Pro is free to download; Theodolite costs $8.99 up front. Theodolite sells 8 one-off in-app purchases. Eos Tools Pro asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Theodolite against 4.6 for Eos Tools Pro. That said, the two scores are not equally well evidenced: Theodolite has 902 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 88% of Theodolite's written reviews are positive against 38% of Eos Tools Pro's.

Theodolite ships an update every 4 months, Eos Tools Pro every 2 months. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Theodolite | Eos Tools Pro |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.7 (902 ratings)](https://appshunter.io/ios/app/theodolite/id339393884/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/eos-tools-pro/id961459993/reviews) |
| Number of ratings | **902** | 9 |
| Positive reviews | **87.8% of reviews** | 37.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#7** | — |
| Size | 30 MB | 36 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Craig Hunter](https://appshunter.io/developer/286743884) | [Eos Positioning Systems](https://appshunter.io/developer/945012224) |

## What reviewers say

### Theodolite

[App page](https://appshunter.io/ios/app/theodolite/id339393884)

**Currently charting:** #7 Top Paid · Navigation (US App Store)

This app combines a compass, inclinometer, rangefinder, GPS, and map with augmented reality features. Capture photos and videos with overlaid geographical data, and navigate using detailed offline maps. Share locations and collaborate with others for various outdoor and professional uses.

**Highlights:** Augmented reality viewfinder, Compass and inclinometer, GPS and map navigation, Data-overlay photo/video camera, Offline map support, Rangefinder and nav calculator, Coordinate system support

**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 |


### Eos Tools Pro

[App page](https://appshunter.io/ios/app/eos-tools-pro/id961459993)

This utility app provides advanced GNSS information for high-precision receivers, crucial for GIS and surveying. It includes an NTRIP client for corrections, user-configurable alarms, and background operation with mapping software.

**Highlights:** Advanced GNSS information (RMS, PDOP, differential status), Built-in NTRIP client for RTK/DGNSS corrections, User-configurable audible alarms, Background operation with mapping software, Satellite view for multiple constellations, Orthometric Height and Position Shift computation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Theodolite free?

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

### Is Eos Tools Pro free?

Eos Tools Pro is free to download, with no in-app purchases.

### Which has better reviews, Theodolite or Eos Tools Pro?

Theodolite is rated higher. Theodolite averages 4.7 out of 5 from 902 ratings, while Eos Tools Pro averages 4.6 from 9 ratings.

### Do Theodolite or Eos Tools Pro have ads?

Neither Theodolite nor Eos Tools Pro shows ads.

### Which is updated more often, Theodolite or Eos Tools Pro?

Theodolite ships an update every 4 months, and Eos Tools Pro every 2 months. Most recently, Theodolite was updated on September 24, 2026 and Eos Tools Pro on September 18, 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.*