# Timberlog: Log Scale Calc — Board feet & volume calculator

> Timber volume calculator for forestry professionals and chainsaw owners. (iPhone/iPad app by Bojan Zalar.)

- Source: https://appshunter.io/ios/app/timberlog-log-scale-calc/id1667253703 (this page in markdown: same URL + `.md`)
- Developer: [Bojan Zalar](https://appshunter.io/developer/1667253705)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.70/5 from 34 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 77 MB
- Languages: French (France), German (Germany), American English, Croatian, Danish, European Spanish, Finnish, Greek, Hungarian, Indonesian and 14 more
- Released: 2023-02-05
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/timberlog-log-scale-calc/id1667253703/reviews.md

## What is Timberlog?

Measure logs and sawn timber in seconds. 20+ scaling standards, weight estimates, Excel and PDF reports — the field calculator built for foresters, loggers, and timber buyers.

Timberlog turns diameter and length into precise volume in board feet, cubic feet (CFT), or cubic meters — one-handed, clearly readable in bright sunlight.

MEASURE ANY WAY YOU WORK
• Round timber: log volume from diameter (or circumference) and length
• Photo measurement: point your camera at a log pile — log count, diameters, and volume detected automatically
• Review detections with a tap: exclude, restore, or add any log the camera missed
• Sawn lumber (boards, planks, beams): width × thickness × length
• Firewood estimation and stack volume
• Standing tree volume by Noonan (Kershaw)
• Bark thickness deduction and wood weight estimates

LOG RULES & SCALING STANDARDS
Doyle Log Rule, Scribner Decimal C, International 1/4", Ontario Scaler's Rule, Roy Log Rule, Cedar Log Scale (2/3 Rule), Hoppus (Quarter Girth), Huber, Smalian, JAS, GOST 2708-75, ISO 4480-83, ČSN/STN 48 0009, NF B53-020, plus local Czech/Slovak and Hungarian species volume tables.

FROM LOGS TO A PRICED LIST
• Tag every log with species, grade, and assortment
• Scan a barcode or QR code to tag logs instantly
• Set prices per species and grade, with tax — see the load's value as you scale
• Average diameter, total volume, and weight at a glance
• Add customer and company details to your reports
• Work with multiple lists open at once for fast job switching
• Share lists by email, other apps, or cloud
• Export to Excel, print reports, or save as PDF

WHO IT'S FOR
Log scalers, timber cruisers, sawmills, firewood sellers, chainsaw owners, and logging crews working with skidders and tractors.

FREE + PRO
The calculator is free. Pro removes all ads.

## Key features

- Multiple volume units (m³, ft³, board feet)
- Supports numerous log scaling methods
- Local timber volume tables for various species
- Create and share Excel reports
- User-friendly data entry
- Optimized for visibility in bright light

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Professional Version | $39.99 | one-time |


## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/timberlog-log-scale-calc/id1667253703/reviews.md

### 5/5 — Excelente

*2024-11-20*

Ahorra mucho tiempo.

### 4/5 — Great but

*2024-11-06*

Very useful but need to have option to remove ads.

**Developer response:** In a paid version you have this option.

### 5/5 — Super pratico

*2024-09-21*

App perfetta, comoda, veloce. Super! App fantastica.

### 1/5 — Ne fonctionne pas

*2024-07-05*

J’ai payé la version professionnelle mais j’ai aucune fonctionnalité comme sur ENDROID. C’est de l’arnaque sur IOS

**Developer response:** Merci pour votre avis. L'application iOS se met lentement à jour avec des fonctionnalités une par une...
Quelle fonctionnalité vous manque le plus ?

### 4/5 — Scan

*2024-03-06*

Très bon outil mais malgré une vidéo YouTube qui montre la possibilité de scanner un code-barres, je ne trouve pas cette fonctionnalité dans l’application.

**Developer response:** Merci pour votre avis.
La vidéo montre l'utilisation de la numérisation de codes-barres de l'application Android. Sur la version iOS, cette fonctionnalité figure sur une liste de tâches.
Merci pour votre patience.

### 4/5 — Good but

*2023-11-17*

Please stop the ads

**Developer response:** For Ads Free experience please use the Professional Version

### 5/5 — Love this

*2023-10-09*

Great app saves hours of time … love it!

## Frequently asked questions about Timberlog

### What units does Timberlog calculate timber volume in?

Timberlog calculates timber volume in cubic meters (m³), cubic feet (CFT), and board feet (CBF). This provides flexibility for various industry standards and user preferences.

### What log scaling methods are supported by Timberlog?

Timberlog supports a comprehensive list of log scaling methods, including cylindrical Huber formula, Doyle Log Rule, Scribner Decimal C Log Rule, and many others. It also includes local tables for specific regions and tree species.

### Can I export my timber calculations from Timberlog?

Yes, Timberlog allows you to create an Excel file report of your timber logs. This report can be easily imported into Excel and other spreadsheet applications for further analysis or record-keeping.

### Is Timberlog suitable for use in bright outdoor conditions?

Timberlog is designed for good visibility in strong light, featuring large buttons and numbers on the display. This makes it practical for field use by foresters and loggers.

### What is the age rating for Timberlog?

Timberlog has an age rating of 4+. This indicates it is suitable for a wide audience, including younger users who may be involved in educational forestry activities.

### How frequently is Timberlog updated?

The latest version of Timberlog is 1.8.7, last updated on January 20, 2026. This suggests active development and regular updates to improve functionality and add features.

### Does Timberlog have ads?

Yes, Timberlog contains advertisements. Users may encounter ads while using the application.

### What is the user rating for Timberlog?

Timberlog has a high user rating of 4.7 stars based on 27 ratings. This indicates a generally positive user experience and satisfaction with the app's functionality.

## Version history (last 5 releases)

### 1.10.3 — 2026-08-22

- Photo measurement: fixed ellipse rotation and centering, more accurate detection
- Fixed camera preview stretching and landscape orientation issues

### 1.10.2 — 2026-08-19

- Measure log piles from a photo — diameters shown right on the image.
- Tag logs by scanning a barcode or QR code.

### 1.9.4 — 2026-07-07

New: sawn lumber calculation, weight estimates, and multiple open lists. Pro removes all ads.

### 1.9.3 — 2026-06-19

- Added Smalian (two-diameter) volume formula for more accurate log measurements
- Added the option to attach comments to items

### 1.9.2 — 2026-06-07

- Added support for sawn wood (sawn timber) calculation
- Added option to work with multiple packet lists open at the same time for faster switching between jobs
- Various stability and performance improvements

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*