# Tomstrails GPS UTM vs UTM Maps

The clearest difference is ads: Tomstrails GPS UTM at none against UTM Maps's shown. Tomstrails GPS UTM also leads on ratings volume (1.6K vs 4). UTM Maps's advantage is update cadence (every 10 days vs every 6 weeks) and review sentiment (100% vs 84%). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Tomstrails GPS UTM sells 1 one-off in-app purchase and UTM Maps sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UTM Maps holds the better App Store score, 5.0 against 4.8. 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 point the same way: 84% of Tomstrails GPS UTM's written reviews are positive against 100% of UTM Maps's.

Tomstrails GPS UTM ships an update every 6 weeks, UTM Maps every 10 days. The most recent releases landed on October 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Tomstrails GPS UTM | UTM Maps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (1.6K ratings)](https://appshunter.io/ios/app/tomstrails-gps-utm/id1004370364/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/utm-maps/id6748431968/reviews)** |
| Number of ratings | **1.6K** | 4 |
| Positive reviews | 83.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 20 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Tomstrails.com](https://appshunter.io/developer/425642318) | [Yogi Yogantara](https://appshunter.io/developer/1825780236) |

## What reviewers say

### 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


### UTM Maps

[App page](https://appshunter.io/ios/app/utm-maps/id6748431968)

This app allows users to work with various coordinate systems, including UTM and MGRS, on a map. It supports registering points with addresses, capturing photos with watermarks, and measuring distances and areas. Data can be exported to CSV or KML formats.

**Highlights:** UTM, MGRS, Lat/Lon coordinate support, Point registration with geocoding, Photo capture with coordinate watermark, Area and distance measurement, Data export to CSV and KML, Field navigation with compass and GPS

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads 1 Month | $0.99 | per month |
| Elevation (1 Month) | $1.99 | per month |
| Elevations (3 Months) | $3.99 | per 3 months |
| Remove Ads 1 Year | $5.99 | per year |


## Frequently asked questions

### Is Tomstrails GPS UTM free?

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

### Is UTM Maps free?

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

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

UTM Maps is rated higher. Tomstrails GPS UTM averages 4.8 out of 5 from 1.6K ratings, while UTM Maps averages 5.0 from 4 ratings.

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

UTM Maps shows ads; Tomstrails GPS UTM does not.

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

Tomstrails GPS UTM ships an update every 6 weeks, and UTM Maps every 10 days. Most recently, Tomstrails GPS UTM was updated on October 13, 2026 and UTM Maps on September 23, 2026.

---

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