GPSts vs Tomstrails GPS UTM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GPSts
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.
- UTM/MGRS coordinate conversion
- GPS data utilization
- Compass functionality
- Altimeter support
- Multiple map view options (Apple Maps, OSM, Ordnance Survey)
Read full descriptionHide full description
・GPSts is an application to convert UTM/MGRS coordinate values here were obtained using GPS for iPhone. ・We support the actions of the user also equipped with compass and altimeter. ・The headquarters of the U.S.Army Engineer has devised a UTM/MGRS. ・UTM/MGRS position indication system is used in such U.S.Army NATO JSDF. ・I can select the map view from "AppleMAP"or "OSM" or"Ordnance Survey map (Japan only)".
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
Read full descriptionHide full description
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.
Screenshots
Verdict
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.
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. 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.
| Parameter | GPSts | Tomstrails GPS UTM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) | 4.8 (1.6K ratings) — better |
| Positive reviews | 100.0% of reviews — better | 83.8% of reviews |
| Number of ratings | 4 | 1.6K — better |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 6.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | ishii yuuta | Tomstrails.com |
Customer experience
GPSts
Tomstrails GPS UTM
Bugs and requests
GPSts
Not enough reviews yet to summarise bugs or 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
In-app purchases
GPSts
No in-app purchases
Tomstrails GPS UTM
- Feature PackFree
Questions
Is GPSts free?
Is Tomstrails GPS UTM free?
Which has better reviews, GPSts or Tomstrails GPS UTM?
Do GPSts or Tomstrails GPS UTM have ads?
Which is updated more often, GPSts or Tomstrails GPS UTM?
Other comparisons
