Comparison

Topography Lite vs Grid Ref UTM

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

Head to head
About

Topography Lite

This tool helps civil engineers, architects, and surveyors measure surface areas and convert coordinates to UTM EGSA87. It allows users to calculate polygon areas, export measurements in DXF, KML, and TXT formats, and input coordinates manually or by selecting points on a map.

Highlights
  • Convert coordinates to UTM EGSA87
  • Calculate polygon area in square meters
  • Export measurements in DXF, KML, TXT
  • Input coordinates manually
  • Select points on map for measurement
Features
Read full description

The application is very useful to Civil Engineers, Architects, Surveyors, and those interested in measuring a surface area or converting its coordinates to UTM EGSA87. This tool enables users to: 1. Convert the coordinates (x,y) to UTM EGSA87 Datum 2. Calculate the area of a polygon in square meters (m2) 3. Send the above measurements by e-mail in [dxf] file format. The dxf file can be opened in a MAC or a PC by any drawing application like Autocad. 4. Send measurements by e-mail in [kml] file format. The kml file can be opened in a MAC or a PC or iPhone by GoogleEarth application. 5. Send measurements by e-mail in [TXT] file format. The text file contains coordinates either in EGSA87 Datum or Latitude and Longitude in decimal degrees or UTM coordinates. The measurements mentioned above can be provided not only by placing the iPhone in each border of a surface area, but also from distance (when users are on their bed or their sofa). Users may also have their final measurements by entering the coordinates either in EGSA87 Datum or Latitude and Longitude in decimal degrees. *********Caution: The Free Version of the program has the additional alteration of EGSA87 coordination by 20% and reduce the measured points. For accurate results buy the full version ! ---------------------------------------------------------------------------------- Η εφαρμογή είναι πολύ χρήσιμη για Πολιτικούς Μηχανικούς , Αρχιτέκτονες , τοπογράφους , και σε όσους ενδιαφέρονται για τη μέτρηση μιας επιφάνειας (γεωτεμαχίου, οικοπέδου κτλ) ή για την μετατροπή των συντεταγμένων της σε UTM ΕΓΣΑ87. Αυτή η εφαρμογή επιτρέπει στους χρήστες να : 1. Να μετατρέψουν τις συντεταγμένες ( x , y ) στο UTM ΕΓΣΑ87 Datum 2. Να υπολογίσουν το εμβαδόν ενός πολυγώνου σε τετραγωνικά μέτρα (m2) 3. Να στείλουν τις παραπάνω μετρήσεις μέσω e-mail σε μορφή αρχείου [dxf]. Το αρχείο DXF μπορεί να ανοίξει σε MAC ή PC από οποιαδήποτε cad εφαρμογή όπως το Autocad. 4. Να στείλουν τις παραπάνω μετρήσεις μέσω σε e-mail σε μορφή αρχείου [ΚΜL]. Το αρχείο KML μπορεί να ανοίξει σε MAC ή PC ή στο iPhone από την εφαρμογή GoogleEarth. Οι μετρήσεις που αναφέρονται παραπάνω μπορεί να προέρχονται όχι μόνο από τη τοποθέτηση του iPhone σε κάθε κορυφή της επιφάνειας που θέλουμε να μετρήσουμε, αλλά και από απόσταση, βρίσκοντας την επιφάνεια που μας ενδιαφέρει από τον χάρτη της εφαρμογής μας και επιλέγοντας τις κορυφές της. Οι χρήστες μπορούν επίσης να έχουν τελικές μετρήσεις τους, εισάγοντας τις συντεταγμένες είτε σε ΕΓΣΑ87 Datum ή το γεωγραφικό πλάτος και το γεωγραφικό μήκος σε δεκαδικούς βαθμούς *********Προσοχή: Η Free Version του προγράμματος έχει επιπρόσθετη αλλoίωση των συντεραγμένων ΕΓΣΑ87 κατα 20% καθώς και περιορισμό μετρούμενων σημείων. Για ακριβή αποτελέσματα αγοράστε την πλήρη έκδοση !

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.

Screenshots

Topography Lite4 screens
Grid Ref UTM3 screens

Verdict

The call

The clearest difference is review sentiment: Grid Ref UTM at 74% against Topography Lite's 20%. Grid Ref UTM also leads on iOS requirement (11.0 vs 16.1). Topography Lite's advantage is in-app purchases (none vs 1). On price, update cadence, 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. Topography Lite asks for nothing beyond the download.

UpkeepUpdate frequency

Topography Lite ships an update every 7 months, Grid Ref UTM every 10 months. The most recent releases landed on September 22, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
Topography Lite versus Grid Ref UTM: the parameters behind the verdict, then further details
ParameterTopography LiteGrid Ref UTM
PriceFreeFree
Rating—4.6 (183 ratings) — better
Positive reviews20.0% of reviews73.7% of reviews — better
Number of ratings—183 — better
Update frequencyEvery 7 months — betterEvery 10 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.111.0 — better
Further details — not scored
Size5 MB5 MB
Age rating+44+
DeveloperGeorgios GraikousisMike Irving

Customer experience

Topography Lite

Written reviews5 reviews
Positive20.0%
Neutral20.0%
Negative60.0%

Grid Ref UTM

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

In-app purchases

None

Topography Lite

No in-app purchases

1 purchases

Grid Ref UTM

One-time1
  • Go Ad Free$0.99

Questions

Is Topography Lite free?
Topography Lite is free to download, with no in-app purchases.
Is Grid Ref UTM free?
Grid Ref UTM is free to download, with in-app purchases available.
Do Topography Lite or Grid Ref UTM have ads?
Neither Topography Lite nor Grid Ref UTM shows ads.
Which is updated more often, Topography Lite or Grid Ref UTM?
Topography Lite ships an update every 7 months, and Grid Ref UTM every 10 months. Most recently, Topography Lite was updated on September 22, 2026 and Grid Ref UTM on October 7, 2026.

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