Comparison

Grid Ref UTM vs Coordinate Converter

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

Head to head
About

Grid Ref UTM

Pinpoint your exact map reference location globally using the Universal Transverse Mercator (UTM) system. Displays UTM grid references, hemisphere, and WGS84 latitude/longitude. Share your location via Twitter. Ideal for outdoor enthusiasts.

Highlights
  • UTM Grid Reference display
  • WGS84 Latitude and Longitude
  • Hemisphere information
  • Location sharing via Twitter
  • Accuracy of readings indicator
  • International operation with USA UTM Zones guide
Features
Read full description

Pinpoint your current map reference location anywhere in the world, using the Universal Transverse Mercator geographic coordinate system. (UTM) App Provides: UTM Grid Ref, Hemisphere, and WGS84 Latitude and Longitude values. The Accuracy of Readings, as indicated by your device, will also be shown. Tweet to Share your Location via Twitter! Grid Ref UTM - Your Grid Reference App! App will operate internationally. App includes a graphical guide to the United States (USA) UTM Zones. Ideally suited for use by walkers, hikers and outdoor sports enthusiasts. It is recommended that you should always carry a map and physical compass when on outdoor pursuits. For best results, use in a flat position, not an upright position. Much like a traditional compass. Use in an open space, where possible, away from trees, buildings and sources of interference. For continued on-screen display of Grid Reference information, please set your Auto-Lock preference in the 'Settings' App. (Settings -> General -> Auto-Lock) Compatible with handsets that feature GPS hardware. You may have to grant the app permission to use this information. -- Ad Supported.

About

Coordinate Converter

Convert GPS coordinates to various formats like DMS, DDM, UTM, MGRS, and GARS. This tool works offline, allowing you to capture, convert, and save locations without an internet connection. It's ideal for field use, SAR operations, and map enthusiasts.

Highlights
  • Offline GPS coordinate conversion
  • Supports DD, DMS, DDM, UTM, MGRS, GARS
  • Capture current location or paste coordinates
  • History log for saved locations
  • Share converted locations
  • Ad-free and privacy-focused
Features
Read full description

MyGPSConverter - Offline GPS Coordinate Conversion Tool Quickly convert your current GPS location into multiple coordinate formats—even without a data connection. Perfect for hikers, responders, military personnel, and map users needing accurate offline location conversions. Capture your current longitude and latitude, paste coordinates from other sources, or enter any location manually. Convert and view your position across popular reference systems used in paper maps, SAR operations, and field reports. All conversions are stored in a history log for easy access later. Key Features: • Converts coordinates between multiple supported formats • Supports DD, DMS, DDM, UTM, MGRS, and GARS • Works entirely offline—no signal or internet required • Smart input fields auto-parse pasted coordinates • Save and revisit converted locations with the built-in history log • Share any converted location via text, email, or clipboard • 100% ad-free and privacy-focused—no tracking or data collection Supported Coordinate Formats: • DD (Decimal Degrees) Simple format using decimal values for latitude and longitude. Example: 37.774945, -122.419434 • DMS (Degrees, Minutes, Seconds) Traditional format expressing degrees, minutes, and seconds. Example: 37°46'29.6"N, 122°25'09.8"W • DDM (Degrees and Decimal Minutes) Combines whole degrees with decimal minutes. Example: 37°46.493'N, 122°25.164'W • UTM (Universal Transverse Mercator) Metric, zone-based grid system used for detailed maps. Example: 10S 551000mE, 4182000mN • MGRS (Military Grid Reference System) Refines UTM into alphanumeric grid squares for high precision. Example: 10SEG5510028200 • GARS (Global Area Reference System) Military grid dividing the globe into 30-minute cells. Example: 006AG3 Ideal for hikers, emergency responders, military personnel, and anyone needing accurate coordinate conversions in the field.

Screenshots

Grid Ref UTM3 screens
Coordinate Converter3 screens

Verdict

The call

The clearest difference is in-app purchases: Coordinate Converter at none against Grid Ref UTM's 1. Coordinate Converter also leads on update cadence (monthly vs every 10 months) and review sentiment (100% vs 74%). Grid Ref UTM's advantage is ratings volume (183 vs 20) and iOS requirement (11.0 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Grid Ref UTM sells 1 one-off in-app purchase. Coordinate Converter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Coordinate Converter holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Grid Ref UTM has 183 ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 74% of Grid Ref UTM's written reviews are positive against 100% of Coordinate Converter's.

UpkeepUpdate frequency

Grid Ref UTM ships an update every 10 months, Coordinate Converter monthly. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

Scorecard7 real differences · 3 level
Grid Ref UTM versus Coordinate Converter: the parameters behind the verdict, then further details
ParameterGrid Ref UTMCoordinate Converter
PriceFreeFree
Rating4.6 (183 ratings)4.8 (20 ratings) — better
Positive reviews73.7% of reviews100.0% of reviews — better
Number of ratings183 — better20
Update frequencyEvery 10 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size5 MB9 MB
Age rating4+4+
DeveloperMike IrvingRichard Vetter

Customer experience

Grid Ref UTM

All ratings183 ratings
Positive90.2%
Neutral2.2%
Negative7.7%
Written reviews19 reviews
Positive73.7%
Neutral0.0%
Negative26.3%

Coordinate Converter

All ratings20 ratings
Positive95.0%
Neutral5.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Grid Ref UTM

One-time1
  • Go Ad Free$0.99
None

Coordinate Converter

No in-app purchases

Questions

Is Grid Ref UTM free?
Grid Ref UTM is free to download, with in-app purchases available.
Is Coordinate Converter free?
Coordinate Converter is free to download, with no in-app purchases.
Which has better reviews, Grid Ref UTM or Coordinate Converter?
Coordinate Converter is rated higher. Grid Ref UTM averages 4.6 out of 5 from 183 ratings, while Coordinate Converter averages 4.8 from 20 ratings.
Do Grid Ref UTM or Coordinate Converter have ads?
Neither Grid Ref UTM nor Coordinate Converter shows ads.
Which is updated more often, Grid Ref UTM or Coordinate Converter?
Grid Ref UTM ships an update every 10 months, and Coordinate Converter monthly. Most recently, Grid Ref UTM was updated on October 7, 2026 and Coordinate Converter on October 12, 2026.

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