# GPSts vs Tomstrails GPS UTM

The clearest difference is rating: Tomstrails GPS UTM at 4.8 against GPSts's 4.3. Tomstrails GPS UTM also leads on ratings volume (1.6K vs 4). GPSts's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 84%). On price, ads and device support there is nothing between them.

Both are free to download. Tomstrails GPS UTM sells 1 one-off in-app purchase. GPSts asks for nothing beyond the download.

Tomstrails GPS UTM holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Tomstrails GPS UTM has 1.6K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of GPSts's written reviews are positive against 84% of Tomstrails GPS UTM's, so the app with the better star average is not the one people write more warmly about.

GPSts ships an update every 3 weeks, Tomstrails GPS UTM every 6 weeks. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | GPSts | Tomstrails GPS UTM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/gpsts/id599423718/reviews) | **[4.8 (1.6K ratings)](https://appshunter.io/ios/app/tomstrails-gps-utm/id1004370364/reviews)** |
| Number of ratings | 4 | **1.6K** |
| Positive reviews | **100.0% of reviews** | 83.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 8 MB |
| Requires iOS | **6.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ishii yuuta](https://appshunter.io/developer/599423721) | [Tomstrails.com](https://appshunter.io/developer/425642318) |

## What reviewers say

### GPSts

[App page](https://appshunter.io/ios/app/gpsts/id599423718)

This app converts UTM/MGRS coordinate values using GPS data from your iPhone. It also provides compass and altimeter functions to aid users in navigation. Supports various map views including Apple Maps and OpenStreetMap.

**Highlights:** UTM/MGRS coordinate conversion, GPS data utilization, Compass functionality, Altimeter support, Multiple map view options (Apple Maps, OSM, Ordnance Survey)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tomstrails GPS UTM

[App page](https://appshunter.io/ios/app/tomstrails-gps-utm/id1004370364)

This app provides precise UTM grid references and displays your location on topographic maps. It works offline, supports various regional datums, and offers multiple coordinate formats for easy sharing and use in other applications.

**Highlights:** Fast and accurate UTM grid reference, Locate position on topographic maps, Works without phone signal, Supports regional datums (e.g., ED50), Multiple coordinate formats (1m, 10m, 100m), Share coordinates with other apps, High contrast display for readability

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Feature Pack | Free | one-time |

**What reviewers like**

- 🚀 Simple and free
- 👍 Works well
- 👍 Easy to use
- 👍 Accurate and reliable
- 👍 Great for hiking and emergencies

**What reviewers complain about**

- 🐛 Doesn't do anything
- 🐛 Coordinates not always accurate
- 💰 Requires payment for some features

**Reported bugs**

- Stopped working after iOS update
- UTM grids were off initially, required setting changes

**Requested features**

- Add support for Morocco coordinate system
- Add option to average readings and hold the result
- Add option to reduce coordinate display to 6 digits for emergency use
- Bring back previous features like degrees/minutes display and ability to edit messages


## Frequently asked questions

### Is GPSts free?

GPSts is free to download, with no in-app purchases.

### Is Tomstrails GPS UTM free?

Tomstrails GPS UTM is free to download, with in-app purchases available.

### Which has better reviews, GPSts or Tomstrails GPS UTM?

Tomstrails GPS UTM is rated higher. GPSts averages 4.3 out of 5 from 4 ratings, while Tomstrails GPS UTM averages 4.8 from 1.6K ratings.

### Do GPSts or Tomstrails GPS UTM have ads?

Neither GPSts nor Tomstrails GPS UTM shows ads.

### Which is updated more often, GPSts or Tomstrails GPS UTM?

GPSts ships an update every 3 weeks, and Tomstrails GPS UTM every 6 weeks. Most recently, GPSts was updated on October 24, 2026 and Tomstrails GPS UTM on October 26, 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.*