iPhone Screenshots


Coordinate System Converter is a fully featured app where you can convert, view, and save your geographic coordinates to/from different types of coordinate systems. It contains more functionality than any other Coordinate Converter out there!

Manually convert to/from:
-UPS/UTM using WGS 84
-MGRS using WGS 84
-Latitude Longitude Decimal Degrees
-Latitude Longitude Degrees Minutes Seconds (D°M'S")
-Latitude Longitude Degrees Minutes (D°M')

Fully functional map (internet connection required for map content)
-Track your current location
-Track your current heading
-Get coordinates from dragging and dropping pins
-Save dropped pins for later viewing
-View all saved coordinates
-View manually entered coordinates

Get your current location in all supported formats

Get your current heading

Save coordinates for later viewing

View Coordinates in the Apple Maps app or the Google Maps app.

Switch between the following Datums:
-Australian 1965
-Krasovsky 1940
-North American 1927
-International 1924
-Hayford 1909
-Clarke 1880
-Clarke 1866
-Airy 1830
-Bessel 1841
-Everest 1830

Share/save coordinates via Notes, Messaging, E-mail, Twitter, and other App extensions.

What’s New

Version 2.0


Bug Fixes.
Updated the app icon and screen shots.
Updated the (.) and (-) keyboard buttons.
Added a "More" page where you can:
-Email questions and feedback
-Leave a rating on the App Store
-Share the app
-Change Datums!

If you like this app please rate it on the app store!

Leave us your feedback at info@isondevelopments.com.

Ratings and Reviews

4.0 out of 5
7 Ratings

7 Ratings

Zims01 ,

Awesome App

Great to have it working again.
I like the accuracy of the position and detail of the satellite maps. This gets used all the time at work.

JRHiTunes ,

Enhancement requests

Sean, please have this app use Google Maps; it's simply much better. Also, after the user inputs coordinates, let the user then press the Map button and have Google Maps (or whatever map app) open with it already zoomed in and with a pin showing the location of the entered coordinates. I really need this!

khiattjr ,

Great app!

Perfect for SAR folks who need to quickly find positions or convert coordinates in multiple formats, without having to switch formats in your GPS.

The one glaring omission is the inability to switch datums. Add that functionality, and maybe some minor UI tweaks, and it's a five-star app! :-)


Sean Ison
2.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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