Marea helps estimating the area for a region given by a set of coordinates. Useful for plots, farm land, roof measurements and anything you can see with Maps.

The total area is calculated and given in several units, such as square meters, square feet, acres, hectares, square km and square miles.

Also available is the distance between each point.

Available as an In-App Purchase is the ability to save the areas, add notes, attach pictures, calculate a price by multiplying a value with the given area, and share as both an map image or a KML file.

Also provided as In-App Purchase is the ability to change to Google Maps. This allows for situations where either map is outdated in a particular area, or there's clouds in the imagery that makes it difficult to make out the various points that need to be measured.

Measurements do not take elevation and other minute aspects into account. This tool does not replace the need for an accurate professional survey.

What’s New

Version 1.9.2

Added better iPad mouse and pencil support, and also keyboard shortcuts for common tasks:

* Cycle through measurement units (Keyboard M)
* Access Price Calculator (Keyboard P)
* Enable or disable direct mouse selection of points (Keyboard T)

Ratings and Reviews

4.7 out of 5
1.3K Ratings

1.3K Ratings

Dislike Trip Advisor App 1973 ,

Great free program

Was very curious about the dimension of some land. It worked great with my phone. I am unsure if there is a paid version or if it has more functions, like save or print. It is defiantly worth a try.

Jayjay2029 ,

Ok but only on a larger scale

The GPS is not really accurate enough on the phone to make precise map measurements from a GPS position. You can mark points on a map, but only zoom in up to a certain point so measuring smaller things (like a 1000 sq ft roof) is tricky. For larger scale measurements where the points to mark are clear I could see this being ok, and only as an approximation.

tommygunolsen19 ,

Has worked perfectly for me

I use this to measure commercial roofs and it is always extremely close to the actual square footage. I have recommended this to a couple of other roofers

App Privacy

The developer, Emidio Cunha, 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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