Arboreal Forest

Arboreal Forest — Forest Inventory App

The fastest and most accurate way to measure your forest — straight from your iPhone. Two professional plot methods in one app: fixed-area plots and prism plots. No caliper, no relascope, no paper forms.

Used by professional foresters, forest engineers, and land managers across Europe and the Americas. Validated in peer-reviewed research and awarded best mobile app for forest measurements.

Two ways to measure your forest

FIXED-AREA PLOTS
Walk the plot and measure every tree with AR and LiDAR. Diameter, height and species are recorded tree by tree, and plot results are compiled instantly.
- Diameter and basal area
- Trees per hectare
- Stand volume
- Tree height
- Tree species

PRISM PLOTS — NEW
Variable radius plots (angle-count sampling), the standard method for timber cruising in North America. The iPhone's telephoto camera works as a precise digital prism: stand at plot center, turn around the phone, and the app shows which trees are in.
- Choose your basal area factor (BAF)
- Big BAF sampling: count with one BAF, measure a subsample with a larger one — and get stand volume
- [Automatic slope correction]
- Basal area and volume on the spot — no tally sheet

2.5x faster than traditional methods
Arboreal Forest replaces caliper, tape, relascope and prism with AR, LiDAR and camera technology. You get compiled results immediately — no office work needed afterwards.

Sub-centimeter accuracy
Diameter measurements validated against manual measurements in a 2024 scientific study show sub-centimeter accuracy. In a 2023 comparison against competing apps, Arboreal Forest outperformed competitors on diameter and trees per hectare.

Built for real fieldwork

Works offline — no signal needed in the forest
All data synced to the cloud automatically
Export via REST API to your own systems
No reference sticks or additional tools required
Familiar workflow for anyone who has measured sample plots before

Trusted by leading forestry organisations
Sveaskog, Suzano, Forest Design, Treemetrics, Skogshubben, The Navigator Company, and Palos — among others — rely on Arboreal Forest for professional forest inventory.

"We measured the diameter of 10,236 trees and the systematic error was less than 1 mm."
— Guilherme Fonseca, Forest Engineer, Suzano

"The measurements in the forest are much smoother and go faster. I get summary and compiled data to interpret directly in the app."
— Sara Brandén, Area Manager, Sveaskog

Try all features for free

No commitment needed to get started. Subscribe weekly or monthly when you're ready. Your data remains accessible even if you cancel.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/