Arboreal Forest
Measurements with your phone
Free · In‑App Purchases
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/
Relascope plots have a new gauge mode, Angle gauge, with two yellow spikes marking the edges of the gauge, and you can switch between it and the prism with a button right in the measuring view.
A frozen image can now be dragged sideways, making borderline trees easier to judge.
The start page, settings, account flow and summary have a new, consistent design, and the summary now shows tree layers per species with fixed colours.
New tutorial videos show how to measure crown width and crown height.
The developer, Arboreal AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Arboreal AB
- Size
- 90.2 MB
- Category
- Business
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later.
• iPhone 6S
• iPhone 6S Plus
• iPhone SE (1st generation)
• iPhone 7
• iPhone 7 Plus
• iPhone 8
• iPhone 8 Plus
• iPhone X
• iPhone XS
• iPhone XS Max
• iPhone XR
• iPhone 11
• iPhone 11 Pro
• iPhone 11 Pro Max
• iPhone SE (2nd generation)
• iPhone 12 mini
• iPhone 12
• iPhone 12 Pro
• iPhone 12 Pro Max
• iPhone 13 Pro
• iPhone 13 Pro Max
• iPhone 13 mini
• iPhone 13
• iPhone SE (3rd generation)
• iPhone 14
• iPhone 14 Plus
• iPhone 14 Pro
• iPhone 14 Pro Max
• iPhone 15
• iPhone 15 Plus
• iPhone 15 Pro
• iPhone 15 Pro Max
• iPhone 16
• iPhone 16 Plus
• iPhone 16 Pro
• iPhone 16 Pro Max
• iPhone 16e
• iPhone 17 Pro
• iPhone 17 Pro Max
• iPhone 17
• iPhone Air
• iPhone 17e
• iPhone 18 Pro
• iPhone 18 Pro Max
• iPhone Duo - iPad
Requires iPadOS 26.0 or later.
• iPad Pro (12.9‑inch)
• iPad Pro (12.9‑inch) Wi-Fi + Cellular
• iPad Pro (9.7‑inch)
• iPad Pro (9.7‑inch) Wi‑Fi + Cellular
• iPad (5th generation)
• iPad (5th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (2nd generation)
• iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (10.5‑inch)
• iPad Pro (10.5‑inch) Wi‑Fi + Cellular
• iPad (6th generation)
• iPad (6th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch)
• iPad Pro (11‑inch) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (3rd generation)
• iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular
• iPad mini (5th generation)
• iPad mini (5th generation) Wi‑Fi + Cellular
• iPad Air (3rd generation)
• iPad Air (3rd generation) Wi‑Fi + Cellular
• iPad (7th generation)
• iPad (7th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (2nd generation)
• iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (4th generation)
• iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Air (4th generation)
• iPad Air (4th generation) Wi‑Fi + Cellular
• iPad (8th generation)
• iPad (8th generation) Wi‑Fi + Cellular
• iPad Pro (11-inch) (3rd generation)
• iPad Pro (11-inch) (3rd generation) Wi‑Fi + Cellular
• iPad Pro (12.9-inch) (5th generation)
• iPad Pro (12.9-inch) (5th generation) Wi-Fi + Cellular
• iPad mini (6th generation)
• iPad mini (6th generation) Wi-Fi + Cellular
• iPad (9th generation)
• iPad (9th generation) Wi-Fi + Cellular
• iPad Air (5th generation)
• iPad Air (5th generation) Wi‑Fi + Cellular
• iPad (10th generation)
• iPad (10th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (4th generation)
• iPad Pro (11‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (6th generation)
• iPad Pro (12.9‑inch) (6th generation) Wi‑Fi + Cellular
• iPad Air 11-inch (M2)
• iPad Air 11-inch (M2) Wi-Fi + Cellular
• iPad Air 13-inch (M2)
• iPad Air 13-inch (M2) Wi-Fi + Cellular
• iPad Pro 11-inch (M4)
• iPad Pro 11-inch (M4) Wi-Fi + Cellular
• iPad Pro 13-inch (M4)
• iPad Pro 13-inch (M4) Wi-Fi + Cellular
• iPad mini (A17 Pro)
• iPad mini (A17 Pro) Wi-Fi + Cellular
• iPad (A16)
• iPad (A16) Wi-Fi + Cellular
• iPad Air 11-inch (M3)
• iPad Air 11-inch (M3) Wi-Fi + Cellular
• iPad Air 13-inch (M3)
• iPad Air 13-inch (M3) Wi-Fi + Cellular
• iPad Pro 11-inch (M5)
• iPad Pro 11-inch (M5) Wi-Fi + Cellular
• iPad Pro 13-inch (M5)
• iPad Pro 13-inch (M5) Wi-Fi + Cellular
• iPad Air 11-inch (M4)
• iPad Air 11-inch (M4) Wi-Fi + Cellular
• iPad Air 13-inch (M4)
• iPad Air 13-inch (M4) Wi-Fi + Cellular
• iPad mini (A20 Pro)
• iPad mini (A20 Pro) Wi-Fi + Cellular
- iPhone
- Languages
English and 4 more
- English, German, Portuguese, Spanish, Swedish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Measure as much as you want $27.99
- Measure as much as you want $8.99
- Measure as much as you want $24.99
- Unlimited measuring – 1 year $299.00
- Copyright
- © Arboreal AB
