Measure Your Forest with Precision

Arboreal Forest: The ultimate app for measuring all forest parameters

Diameter—Basal Area—Trees per hectare—Volume—Height—Tree species

2.5x Faster

Measure forest parameters quicker than traditional methods

Sub-cm Accuracy

Achieve sub-centimeter accuracy in your measurements

Best Mobile App

Tested in peer-reviewed journal and awarded best mobile app for forest measurements

Benefits of using Arboreal Forest:

Your measuring tools are at always with you
Good accuracy
You get the result immediately
All the data is stored in the cloud
No extra reference tools or sticks are needed
You will recognize the method if you have been measuring a forest before
You have full control
Skip paper and pen and avoid extra work
Works offline

How accurate is the result?

We have tested the application in different forests and we are comfortable with the result. The most deviations are within two centimeters. The bias is very low and that means a good estimate of the total volume, trees per ha, and basal area. The largest error occurs when you place the sample plots. The plots should be spread out systematically over the whole forest. To get a good estimate of the forest, you should place a lot of sample plots.

Parameter	Error (MAE)	Bias
Area	1 %	0.3 %
Diameter / tree	3.9 %	0.67 %
Basal area / tree	7.7 %	0.5 %
Height	0.9 %	0.3 %

This is data from our own evaluation. If you want to know how it was done you could open this link.

Arboreal Forest has been evaluated in a Master thesis by Lina Lindberg at the Swedish University of Agricultural Sciences in 2020. The version of the app that was evaluated did not use the Lidar sensor that was released the same year. Link

Sveaskog evaluated the app in a report 2021: Arboreal Forest Evaluation Sveaskog

A scientific study compared three different mobile applications: Arboreal Forest, Katam, and Trestima in 2023. Arboreal Forest was superior to the other two apps because of the superior accuracy of diameter and trees / hectare. Link

The diameter measurement for Arboreal Forest has been compared to manual measurements in an article published in 2024. The Arboreal Forest had sub centimeter accuracy. Link

How do I start using it?

The app is available on App Store

You could test all features for free. If you want to continue using the app you could subscribe per week or month.

You will always have access to your measurements even after you discontinue the subscription.

Payments are done in the app.

We offer some extra features for companies that makes it easier to use the app for companies and organizations.

We offer a Rest-API that lets you download the data from the companies members.

Please contact us for more information.

What our users say about the app:

This technology has enabled us to bring a new level of precision and efficiency to the assesment of forest resources, contributing to the protection and responsible management of our forests.

Bogdan Candrea

CEO, Forest Design SRL

The technology presents an extremely high accuracy and a very easy measurement method. We measured the diameter of 10 236 trees and the systematic error was less than 1 mm

Guilherme Fonseca

Forest Engineer, Suzano

The biggest advantage is that the measurements I make in the forest are much smoother and go faster. I get summary and compiled data to interpret directly in the app, which is great! Arboreal is also very user-friendly.

Sara Branden

Area Manager, Sveaskog

Arboreal Forest Videos

Arboreal Forest - Basic Tutorial

This is the basic tutorial for the app Arboreal Forest. It shows how to measure a sample plot in the forest

Arboreal Forest - Advanced Tutorial

The app Arboreal Forest has a lot of features. Here we show: - How to take multiple measurement off the same tree - How to change tree species - Add a comment to a tree - Mark a tree as damaged - Describe the settings that are available - Rotate the local coordinate system - Measure many heights of the same tree species - Delete a measured tree

Forest Design - experiences from the field

Forest Design is a Romanian Forest technology company that are using many digital tools to survey forests. They are also using the app Arboreal Forest to measure fixed radius sample plots.

Frequently Asked Questions

Arboreal Forest requires a phone with ARKit. All iPhones and Ipads thar are released after 2015 (iPhone 6S and later) supports ARKit.The best results will be achieved with a phone that has a Lidar sensor. Iphone 12 Pro and later have a Lidar sensor.

All measurements are made on the device in realtime and no cellular connection is required. A summary report is also available offline. If you want to save data in the cloud and then be able to use it in your own computer system, you must access Wifi or cellular connection afterwards.

It is possible to measure in most forests. In forests where it is hard to walk, it is also hard to get good measurements. For example if you have 15 000 trees per hectare or the terrain is very steep, then it will also be hard to measure because it is hard to walk in such forest.

We replace all measuring tapes, sticks, inclinometer, GPS and relascopes.You only need to bring your phone.

Expect about 30-50 plots on a single charge. If you have an old phone with a bad battery, we recommend that you replace the battery or bring a power bank. If you want to measure a whole day on a single charge close all other apps and turn down the brightness of the screen.

The data you have synced are available on https://www.arboreal.se/forest/. You could download the data as .csv-files. If you are a company customer you could retrieve the data with through a REST-API.

Yes. We have learnt a lot by creating the height meter for both Android and iOS. It takes a lot of resources and time to create Arboreal Forest for Android. We also think that the Lidar sensor are needed for getting accurate measurements of diameter. There is some similar sensors on some Android devices, but it is uncertain if they will persist and be available in the long run. We have not started any development of Arboreal Forest for Android and we have no such plan in the closest future..