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iPhone & iPad  ·  Now on the App Store

LogMaster: know exactly what to cut — before you make the first cut.

Scan the log with your iPhone or iPad. LogMaster shows you the cuts a master sawyer would make — a step-by-step sequence sized to your mill, your products, and your prices. New to sawmilling? You'll saw your first log like your ten-thousandth.

See it in action

From scan to cut plan, start to finish.

A real log, scanned and solved in the app — no narration.

Complete scan and optimize sequence — 1½ minutes
Watch the 10-minute Startup Guide →
More video guides — see the manual
Scan and optimize video thumbnail End scan walkthrough video thumbnail
Browse the Log Master training videos →
The problem

Every miscut is money left on the ground.

Deciding how to cut a log by eye — or even with a tape measure — means you're guessing. LogMaster replaces the guess with a calculated cut plan based on the actual geometry of that specific log.

"The difference between a good cut and a great cut is knowing what's inside the log before you touch it with the blade. LogMaster gives you that knowledge in seconds."

Workflow

From log to cut plan in four steps.

No complicated setup. No steep learning curve. Open the app, scan the log, and get a cut plan in under a minute.

1

Scan the log

The LiDAR scanner captures an accurate 3D model of the log — diameter, taper, and shape. Same scanning engine as LogScanner, included at no extra cost. No separate app needed.

2

Review the geometry

LogMaster displays the log's actual measurements on screen. Diameter, taper, volume — no tape, no estimation. What you see is exactly what you've got.

3

Get your cut plan

The optimization engine calculates the cut pattern that maximizes board foot yield from that specific log's shape and dimensions. Every log is different — your cut plan should be too.

4

Export and cut

Save and export the cut plan as a report. Take it to the mill, share it with your crew, or archive it for your records. Every decision documented.

Shooters have a rule: spend as much on your optics as on your rifle — the finest barrel can't hit what it can't see. Your mill is the rifle. LogMaster is the glass. It sees the log — sweep, taper, every usable inch — and tells you exactly where to aim each cut.

Features

Everything in LogScanner, plus optimization.

LogMaster is the complete package — full scanning is included, so you don't need to open a separate app just to capture the log.

01 — Scan

LiDAR scanning

Full LiDAR scanning included. No separate app needed. Works on iPhone 12 Pro and later, and on iPad Pro with LiDAR.

02 — Optimize

Cut optimization

Calculates the cut pattern that gets the most board feet out of each log's actual shape. Stop leaving value in the slab pile.

03 — Maximize

Yield maximization

Every log is different. LogMaster treats it that way — each cut plan is calculated from that log's specific geometry, not a generic template.

04 — Export

Export cut plans

Save and share reports for each log. Build a record of every cut decision you make. Share with your crew or archive for future reference.

Why it is smart

When the machine out-plans the expert.

One expert at a time, computers took the lead.

YearFieldWhat happened
1994CheckersChinook wins the Man-Machine World Championship
1997ChessIBM's Deep Blue defeats world champion Garry Kasparov
2011Jeopardy!IBM Watson beats the show's two greatest champions
2016GoAlphaGo beats Lee Sedol, 4 games to 1
2017PokerLibratus beats four top pros at no-limit hold'em
2020BiologyAlphaFold predicts protein shapes as well as lab experiments
2026SawmillingLogMaster plans the log: 47 million board placements checked before the first cut

In each case the computer checked more options than any person could and found better answers. The sawyer still runs the mill; LogMaster does the planning no person has time to do by hand.

What makes it smart

Intelligence is the ability to adapt. Merriam-Webster's first sense: “the ability to learn or understand things or to deal with new or difficult situations.”

  • No two logs are alike. LogMaster scans the real shape of this log, not an average one.
  • No two mills are alike. The cut plan is built for the sawmill you set up.
  • No two orders are alike. It optimizes for the boards and prices you choose.

A rule of thumb gives every log the same answer. LogMaster finds this log's answer.

Good advice: measure twice, cut once. Great advice: scan once.

What one scan of one log sets in motion:

CountWhat it is
275,000LiDAR points captured
54,000spots measured on the log
173distinct rotations checked
31,089cutting plans built
124,356board stacks calculated
1.17 millionindividual board evaluations
47 millionboard placement checks
21 stepsin the cut sequence produced
70%green recovery

The scan happens on an iPhone or iPad you already own. Counts are from one LogMaster scan and optimization of a single log; results vary by log and mill. LogMaster gives estimates; it is not a certified scaling instrument.

Sources: Deep Blue, May 1997 · Watson, February 2011 · AlphaGo, March 2016 · Libratus, January 2017 · AlphaFold, November 2020 (CASP14) · LogMaster launched August 2026.

Pricing

LogScanner or LogMaster?

If you need scanning and measurements on the go, LogScanner is free and the right starting point. If you're optimizing cuts and maximizing yield at the mill, LogMaster is the tool for the job.

LogScanner
iPhone & iPad
Free

Scanning and measurements for the field, at no cost. Great for buyers, sellers, and anyone who needs accurate log dimensions on the go.

  • LiDAR scanning
  • Measurements on screen
  • Save and export scan files
  • Volume calculations
  • Cut optimization not included

How much is your time worth? Learning to read a log takes years — and a lot of ruined boards. LogMaster builds that judgment in for about 50¢ a day, and pays for itself on the first log.

Requirements

What you need

LogMaster runs on iPhone and iPad. Scanning is included — no need to install LogScanner separately.

PlatformiPhone and iPad — iOS 17 or later
Scanning deviceiPhone 12 Pro or later, or iPad Pro with LiDAR
LogScanner requiredNo — scanning is included
Extra hardwareNone
AvailabilityApp Store — iPhone and iPad
Documentation

User Manual

Reference documentation for Log Master: every screen, and every field on it.

Log Master User Manual
Every screen and field, covering scanning, optimizing, sawing, and setup.
Web  ·  27 pages
View Manual →

Choosing your first mill? Read our buyer's guide.

Need the board feet in a log you already have? Try our log scale calculator.