Treezilla is a citizen science project developed by The Open University and Forest Research. People across the UK are contributing to a map of trees that will help us all understand more about the benefits that they provide. Download the app and sign up to the project to help map trees in your area. Anyone can participate, whether you are a beginner with trees, or an expert surveyor. And it's free to sign up.

From the app you can download free guides to help you to identify the most common urban trees and survey trees around you to professional standards.

View the map to see whether trees in your area have been mapped, locate particular species you're interested in and update records that are missing data. If your local trees aren't already mapped, get a tape measure, load up the app and start mapping!

As well as helping you understand more about the trees around you, the data in from the map will help researchers find out more about the distribution and diversity of trees across the UK, and better understand the benefits they provide.

Ratings and Reviews

3.0 out of 5
1 Rating

1 Rating

DaftNotStupid ,

Great idea but tedious to use

As the subject says, Treezilla is a great idea but it’s very tedious to use. When you add a tree, the map reverts to your current location, so you need to navigate to where the tree is. If you want to add multiple trees in the same area you need to renavigate the map each time.
Having added a tree it appears on the map as a brown dot but you need to be very accurate on full zoom to bring up the photo and other details of the tree.

App Privacy

The developer, Natural Apptitude, 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.


Natural Apptitude Ltd
74.6 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.



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  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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