Comparison

Coordinates vs Tomstrails GPS UTM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Coordinates

This app is a versatile tool for converting and managing geographic coordinates. It supports numerous global formats and datums, allowing users to view, input, and save locations with rich details. Ideal for professionals and outdoor enthusiasts needing precise location data.

Highlights
  • Coordinate conversion (UTM, MGRS, Georef, etc.)
  • Batch conversion of multiple coordinates
  • Add notes, photos, and media to saved locations
  • Datum conversion with PROJ.4 support
  • Real-time navigation and tracking
  • Offline map tile downloads
  • Import/export GPX, GeoJSON, KML files
Features
Read full description

Coordinates is a powerful and user-friendly tool for anyone working with geographic locations — from travelers and surveyors to engineers and GIS professionals. Instantly view, convert, and manage coordinates in a wide range of global formats and datums, all within a clean and intuitive interface. Whether in the field or at the desk, Coordinates is your all-in-one solution for precise location work. # User-friendly Design Your current location is displayed at the intersection of two grey lines, with clear latitude and longitude readouts. You can manually set the location using map taps, coordinate input, or place search. Intuitive buttons give quick access to measurement tools, map layers, location bookmarking, shape drawing, and annotation — all from a clean, compact interface. # Various Coordinate Formats Supports formats like UTM, MGRS, Georef, and more alongside Longitude/Latitude. # Batch Converter Quickly convert multiple coordinates or files in one streamlined action. # Rich Object Details Add notes, photos, and media to any saved object — pins, shapes, or measurements — to keep your data organized and context-rich. Easily share your saved content across devices using backup and export tools. # Datum Conversion Transform coordinates using EPSG, ESRI, and IAU2000 references. Supports X/Y, geodetic, and projected systems. # PROJ.4 Calculator Convert coordinates between systems using the PROJ.4 library, with support for datum shifting and custom projections. # Navigation & Tracking Real-time bearing and distance updates are provided with a large coordinate readout, ideal for on-the-field usage. # Speedometer Track your current speed in real time. # Unit Converter Convert 40+ units (distance, pressure, radiation, etc.) # Signal Board Send big bold messages on-screen # Elevation Support Altitude data is available for land areas # Import / Export - .gpx .geojson .kml file supported # Distance, Bearing & Area Mark points or draw lines to measure distance, bearings, and area. # Offline Map Tiles Download tiles for offline use. Pick a city or define your own area. # Custom Map Tile Selector Choose from Apple Maps, OSM, or add your own tile server with {z}/{x}/{y} format. # Supported Input / Output # Latitude and Longitude DD/DM/DMS Standard UTM NATO UTM MGRS / USNG Georef QTH Locator / Maidenhead (WGS84) World Mercator (WGS84) Web Mercator Geohash what3words Global Area Reference System (GARS) Ordnance Survey National Grid [BNG] OSGB36 ISO 6709 Natural Area Code Irish Grid Reference / Coordinates Plus Code (Open Location Code) Mapcode Dutch Grid ECEF Indian Kalianpur 1975 Open Postcode Geohash-36 Guatemala GTM RT90 SWEREF99 Indian 1975 QND95 / Qatar National Grid IRENET95 / Irish Transverse Mercator KOSOVAREF01 HD 72 / EOV Kertau (RSO) / RSO Malaya Timbalai 1948 / RSO Borneo EST97 Estonian 1997 LKS92 / Latvia TM NZGD49 NZGD2000 CH1903/+ GGRS87 ETRS89-extended / LAEA Europe NTF (Paris) / Lambert zone II French DFCI Grid ARINC 424 FMS ARC1950 Pulkovo 1942 / SK42 PZ-90 H3 Placekey GDM2000 JGD2011 KUDAMS/KTM World Magnetic Model / WMM 2015v2 PRS92 / Philippines Search by name Photo metadata Proj.4 formats Street Address # Subscriptions # “Coordinates – GPS Converter” including most of its features, is completely FREE to use. You can subscribe to this application to remove ads Price may vary by location. Payment for subscriptions will be charged to your iTunes Account at confirmation of purchase Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscriptions may be managed by going to your iTunes Account Settings after purchase or by clicking the “Purchase / Manage Subscription. Auto-renewal may be turned off by going to Account Settings after purchase. Subscription cannot be cancelled during the active subscription period Privacy policy: https://mapnitude.com/privacy-policy Terms of use: https://mapnitude.com/terms-of-service

About

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.

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
Read 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

Coordinates4 screens
Tomstrails GPS UTM3 screens

Verdict

The call

The clearest difference is ads: Tomstrails GPS UTM at none against Coordinates's shown. Tomstrails GPS UTM also leads on review sentiment (84% vs 64%). Coordinates's advantage is ratings volume (6.8K vs 1.6K) and device support (4 vs 1). On price, rating, update cadence and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Coordinates sells 6 in-app purchases, starting at $1.99 per month and Tomstrails GPS UTM sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Coordinates against 4.8 for Tomstrails GPS UTM. Both are backed by a comparable volume of ratings — 6.8K and 1.6K respectively. Written reviews are what separate them: 64% of Coordinates's written reviews are positive against 84% of Tomstrails GPS UTM's.

UpkeepUpdate frequency

Coordinates ships an update monthly, Tomstrails GPS UTM every 6 weeks. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
Coordinates versus Tomstrails GPS UTM: the parameters behind the verdict, then further details
ParameterCoordinatesTomstrails GPS UTM
PriceFreeFree
Rating4.6 (6.8K ratings)4.8 (1.6K ratings) — better
Positive reviews63.6% of reviews83.8% of reviews — better
Number of ratings6.8K — better1.6K
Update frequencyMonthly — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.6 — better18.0
Further details — not scored
Size107 MB8 MB
Age rating4+4+
DeveloperMapnitude Company LimitedTomstrails.com

Customer experience

Coordinates

All ratings6,716 ratings
Positive91.6%
Neutral4.3%
Negative4.1%
Written reviews176 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

Tomstrails GPS UTM

All ratings1,607 ratings
Positive94.3%
Neutral2.6%
Negative3.1%
Written reviews154 reviews
Positive83.8%
Neutral7.1%
Negative9.1%

User reviews

Coordinates

From 6.8K App Store ratings

What we love

  • 🚀 Accurate location finding
  • 👍 Simple and easy to use
  • 💡 Supports multiple coordinate formats
  • 🚀 Works well overseas
  • 👍 Helpful for environmental research

Room to improve

  • 🐛 Occasional bugs and crashes
  • 💰 Expensive subscription to remove ads
  • 🤔 Confusing or unintuitive user interface
  • 🔍 Difficulty finding small locations
  • 🙄 Ads covering important information

Tomstrails GPS UTM

From 1.6K App Store ratings

What we love

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

Room to improve

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

Bugs and requests

Coordinates

Reported bugs

5 issues
  • Coordinate display issues (e.g., UTM showing incorrect hemisphere)
  • App crashing or freezing on launch
  • Inability to delete drawn lines or markers
  • Coordinate conversion not working as expected
  • Compatibility issues with newer iPhone models

Requested features

6 requests
  • Navigation and routing functionality
  • Support for What3Words coordinate system
  • Option to set preferred coordinate format as default
  • Ability to enter addresses or intersections to get coordinates
  • Add altitude information to saved locations
Show 1 more
  • Offline mode for areas without cellular coverage

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

6 purchases

Coordinates

Subscriptions6
  • Plus Upgrade$1.991 Month
  • Plus Upgrade$2.991 Month
  • Plus Upgrade$9.996 Months
Show 3 more
  • Plus Upgrade$15.996 Months
  • Plus Upgrade$17.991 Year
  • Plus Upgrade$28.991 Year
1 purchases

Tomstrails GPS UTM

One-time1
  • Feature PackFree

Questions

Is Coordinates free?
Coordinates is free to download, with in-app purchases available.
Is Tomstrails GPS UTM free?
Tomstrails GPS UTM is free to download, with in-app purchases available.
Which has better reviews, Coordinates or Tomstrails GPS UTM?
Tomstrails GPS UTM is rated higher. Coordinates averages 4.6 out of 5 from 6.8K ratings, while Tomstrails GPS UTM averages 4.8 from 1.6K ratings.
Do Coordinates or Tomstrails GPS UTM have ads?
Coordinates shows ads; Tomstrails GPS UTM does not.
Which is updated more often, Coordinates or Tomstrails GPS UTM?
Coordinates ships an update monthly, and Tomstrails GPS UTM every 6 weeks. Most recently, Coordinates was updated on October 30, 2026 and Tomstrails GPS UTM on October 29, 2026.

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