Quickly and easily determine a remote GPS location from two, or more, geolocated points with compass bearings to that location.

Specifically designed for use in the field, Field Triangulate supports:

- Fully automated use of iOS device location. Compass bearings are best manually entered.
- Manual entry/edit of any/all readings.
- On map display in various display modes.
- Manually update device bearings (e.g. for use with a compass.)
- Share the triangulation to others.
- Multiple latitude/longitude formats:
-- Decimal degrees
-- Degrees and decimal minutes
-- Degrees, minutes and seconds.
-- (Display for UTM.)

Basic usage:

Use your iOS device & compass to take bearing on a remote location from two locations and Field Triangulate will calculate and display the GPS coordinate for the remote location.

Advanced usage:

Enter readings provided from a remote person (perhaps by iPhone or radio) and add your own readings manually in order to calculate a remote location.

What’s New

Version 3.1.2

Fixes and improvements. Updated to latest platform. Share Triangulation.

Ratings and Reviews

4.2 out of 5
15 Ratings

15 Ratings

Mtordrive ,

Practice first

Downloaded it last minute to use for fox hunting with my radio club as my son backed out last minute.
I like it and have since practiced it and do like it as a one person operation. Can save points and historic readings. I recommended it to my radio club.

Nick Kafir ,

Useful but problematic

I’ve been seeing a consistent problem where projection lines disappear at carrying zoom levels, most often when close up.

Another issue is when holding the phone sideways to sight down the edge of the phone the keyboard blocks the save button on screen. Additionally, being able to use the volume buttons would work well for locking the direction in.

After setting a projection line the map at times will zoom out to a world view requiring panning and resetting the zoom level.

Finally I’d like to be able to exit from creating a projection like without creating the line on the map. As it is now, tapping off to the side will return to the map but will still set a projection line at 0 degrees. One must then go to the listing of readings and delete it from there.

Developer Response ,

Hello Nick Thanks for the feedback. I didn't notice it here at first, but I see it now. Thanks for the concise reports. For next release I've fixed the second and fourth. The first is less in my control (the platform controls this) but I can investigate a workaround. The third is the app attempting to zoom to contain all the parts (readings, triangulation) but I'll look into it. Let me know if you'd like to be on the early access list to get a copy before next release. Thanks again for the detailed feedback.

LaxMedia ,

Good for radio fox hunting

Attaching iPhone to rotating radio signal locator, this app helps to quickly triangulate on map where the “fox” is hidden. Note to developer the compass hdg should be more visible when setting up the fix. Maybe even using the camera as a target sight.

App Privacy

The developer, Neukadye, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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