Tomstrails GPS UTM vs GPS Convert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tomstrails GPS UTM
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.
- 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
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GPS UTM displays a fast and accurate UTM grid reference. Locate your position on topographic maps. GPS UTM supports many of the regional datums used around the world including ED50. ∙ No phone signal required - works in the most remote locations. ∙ 1 metre, 10 metre and 100 metre formats. ∙ Paste your coordinate into other apps or share with other people. ∙ A large, clear, high contrast display ensures you can easily read your position in any light conditions. ∙ Optimal battery use based on speed of travel and current charge level ensures all day use. ∙ No Adverts. GPS UTM - know where you are.
GPS Convert
Easily convert GPS coordinates between various systems like WGS84 and VN2000. Save locations for future use, with simultaneous updates to both geographic and map grid coordinates. View converted location data directly on the map.
- GPS coordinate conversion
- Support for WGS84, VN2000, and more
- Save locations for later use
- Simultaneous coordinate updates
- Map annotation information display
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This app is all about GPS coordinate conversion. Find a location in map with special coordinate system (WGS84, VN2000 …) and you can save to work next time. While saving places, if you modify one end of the data (either the geographic or map grid coordinates), the other end will be simultaneously updated, even the annotation on map. When you tap another annotation on Maps, brief information of this annotation after converting latitude and longitude by proj4 is shown below. We value your feedback and comments. If you like GPS Convert, please rate it on App Store. Thanks for your support and we will continue to devote our best efforts to offer excellent Apps for you!
Screenshots
Verdict
The clearest difference is in-app purchases: GPS Convert at none against Tomstrails GPS UTM's 1. GPS Convert also leads on review sentiment (100% vs 84%) and device support (3 vs 1). Tomstrails GPS UTM's advantage is ratings volume (1.6K vs 19) and rating (4.8 vs 4.5). On price there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Tomstrails GPS UTM sells 1 one-off in-app purchase. GPS Convert asks for nothing beyond the download.
Tomstrails GPS UTM holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Tomstrails GPS UTM has 1.6K ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 84% of Tomstrails GPS UTM's written reviews are positive against 100% of GPS Convert's, so the app with the better star average is not the one people write more warmly about.
Tomstrails GPS UTM ships an update every 6 weeks, GPS Convert every 4 months. The most recent releases landed on October 21, 2026 and October 2, 2026 respectively.
| Parameter | Tomstrails GPS UTM | GPS Convert |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.6K ratings) — better | 4.5 (19 ratings) |
| Positive reviews | 83.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.6K — better | 19 |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No | — |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomstrails.com | Vu Tran |
Customer experience
Tomstrails GPS UTM
GPS Convert
Bugs and requests
Tomstrails GPS UTM
Reported bugs
2 issues- Stopped working after iOS update
- UTM grids were off initially, required setting changes
Requested features
4 requests- 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
GPS Convert
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Tomstrails GPS UTM
- Feature PackFree
GPS Convert
No in-app purchases
Questions
Is Tomstrails GPS UTM free?
Is GPS Convert free?
Which has better reviews, Tomstrails GPS UTM or GPS Convert?
Which is updated more often, Tomstrails GPS UTM or GPS Convert?
Other comparisons
