Download Coordinate Master apk 3.3 free for Android smartphone

28 Jun
Coordinate Master

Posted by BinaryEarth in Tools | June 28, 2016 | 4 Comments

Apk file size: 5.6 MB

This powerful geodesy app allows you to convert coordinates between many of the world's coordinate systems, compute geoid offsets, and estimate the current or historic magnetic field for any location. It also includes surveying tools to compute the point scale factor and grid convergence.

The app uses the PROJ4 library and a lookup file containing projection and datum parameters to support over 1700 coordinate systems. Lat/lon, UTM, US State Plane, and many, many others are supported. You can also create your own coordinate systems if you know the parameters.The app also supports affine transformations to allow you to set up local grid systems. See for details.

The app either takes manual coordinate input or uses your current GPS location. The computed location can be displayed in Google Maps via your web browser with a single button press. It also supports MGRS grid references.

You can export any lat/lon, UTM or transverse Mercator coordinate systems to a HandyGPS datum (.hgd) file for use as a custom datum in HandyGPS.

The magnetic field calculator page computes the Earth's current or historical magnetic field at a given location. The magnetic declination computed is useful for compass navigation since it represents the difference between true north and magnetic north. Field inclination and total intensity are also computed. This tool uses the International Geomagnetic Reference Field model (IGRF-12). See for full details. Years from 1900 through to 2020 are supported.

The app can also compute the geoid height offset for a given location, using the EGM96 model. Geoid offset can be subtracted from the height reported by GPS to give your actual height above sea level.

Online help for the app is available at

NOTE: This app now includes all the functionality that used to be in the Point Scale Factor app.

Permissions required: (1) GPS - to determine your location, (2) SD card access - to read and write user projections file.

Whats new

    3.3: Fixed bug with .hgd export when affine params are being used.
    3.2: Fixed bug with GPS updates stopping when phone rotated. Also export affine parameters to .hgd file.
    3.1: Added coordinate systems Albers Australian Conic (GDA94), Columbian Bogota (1975) and Bogota (WGS84). Fixed errors with Italian Roma 1940 32T and 33T.
    3.0: Show units for eastings and northings. Added the tools which used to be in the Point Scale Factor app to the main menu.

BinaryEarth part of our Tools and have average installs from 500 to 1000. Last Update June 28, 2016. Google play rating is 88.0. Current verison is 3.3. Actual size 5.6 MB.

Download world-coord-sys-tool.apk 5.6 MB


Boris Bilc

A Must have! Speachless... a must have app for anyone who is working with coordinate conversions on the field. Beeing able to use custom 7-parametric transformations is just wonderful. Thanks for developing this app, keep up the good work!

John Ryan

Amazingly comprehensive projections support

El Kabong

Very powerful coordinate re calculator Just bought the app and used it on a jobsite (I'm mapping geology on it). Really simple to use and just what I needed.  Instant state plane coordinates that I can use directly on my field maps. I should add that the conversions can be nearly real time if you use your phone's gps.

Bill Webber

Very helpful for quick conversions in the field. Compared with Corpscon and was accurate. Nice app!

Leave A Comment