Comparison · Facts checked October 26, 2026
Construction Master Pro alternative
Construction Master Pro, from Calculated Industries, has been a jobsite standard for decades, first as a handheld calculator and now as an app. Construction Calculator Pro, from Plumb, is a newer app. It does feet-inch-fraction math too, adds camera and sensor tools, and you buy it once instead of subscribing. Here is how the two compare.
The app is called Construction Calculator Pro. Its App Store listing takes that name with the next version.
Construction Master Pro and Construction Calculator Pro, side by side
Prices are in US dollars from the US App Store and Google Play, and can change. Facts about Construction Master Pro come from its own listings and calculated.com.
| Feature | Construction Master ProCalculated Industries | Construction Calculator ProPlumb |
|---|---|---|
| Made by | Calculated Industries, Inc., of Carson City, Nevada. Founded in 1978. | Plumb, from Made with Best Practice LLC, a small independent studio. |
| Track record | Making construction calculators since 1986 and in the app stores since 2010. Rated 4.8 from about 40K App Store ratings and 4.7 from 10.4K Google Play reviews. | New in 2026. No store rating yet. |
| Price | Free 14-day trial, then a subscription that renews automatically: $4.99 a month or $39.99 a year on the App Store. Google Play lists in-app purchases of $0.49 to $39.99 per item. | Free 14-day trial of everything, then a one-time $9.99 Lifetime Unlock on either store. No subscription. After the trial, the calculator and tools need the unlock, and saved records stay viewable. |
| Runs on | iPhone and iPad (iOS 15 or later) and Android. Also sold as a handheld calculator, model 4065. | iPhone and iPad (iOS 15 or later) and Android 7.0 or later. |
| Calculator | Feet-inch-fraction, yard, decimal and metric math, D:M:S degree conversions, full trig keys, a paperless tape and four memories. Construction Master Pro Trig is included. | Feet-inch-fraction math with exact results and no rounding drift, a fraction key, voice entry, one-tap unit conversion including metric, and an undo tape. |
| Trade math | Common, hip, valley and jack rafters (regular and irregular) with cut angles, stairs, rake walls, roofing, drywall and siding, footings and blocks, circles, columns and cones, board feet, studs on center, compound miters and crown angles. On iOS, EZ Calcs adds 100+ forms-based calculators with illustrations. | Ten trade calculators, each with a to-scale diagram: stairs, roof and rafters, concrete, wall framing, drywall, masonry, circle, polygons, square-up and 3D shapes. |
| Measuring | Bosch GLM integration sends readings from a Bosch laser measure into calculations or notes. | AR tape measure, spirit level, stud finder, unit converter, sound meter, camera inspector with a flashlight, photo markup and a floor scan that maps dips and crowns. |
| Notes and records | Project notes in text or voice-to-text, with folders by project or client and attachments. Save and share calculations and outputs such as cut lists. | A saved ledger that names each result with its type, date, time and optional location. Attach and mark up photos, then export a branded PDF or PNG, or a .plumb backup. |
Both App Store listings also show Mac (Apple M1 or later) and Apple Vision compatibility.
Where Construction Master Pro is stronger
It has real advantages. If they matter to your work, it is the better pick.
- A long track recordCalculated Industries was founded in 1978 and has made construction calculators since 1986. In 2006, Fine Homebuilding’s 25th-anniversary issue included the Construction Master Pro among the “innovative tools that have changed the way we build.”
- Proven with usersThe app has been in the stores since 2010. About 40K App Store ratings average 4.8, the listing reports more than 1.12 million downloads, and Google Play shows 4.7 from 10.4K reviews.
- Hardware heritageThe handheld Construction Master Pro (model 4065, $74.95 MSRP) is still sold. Calculated Industries says the app has all of the handheld’s features plus app-only ones, built on the same core engine as its calculators.
- Deeper mathFull trig keys, regular and irregular hip, valley and jack rafters, rake walls, compound miters and crown angles. Construction Calculator Pro has no trig keys and no hip or valley rafter solver.
- Help built inA full user’s guide is built in, any key can be pressed and held for help, and there are how-to videos. On iOS, Ask CMPro, which won a 2026 Pro Tool Innovation Award, gives exact steps for any calculation. It can also take readings from a Bosch GLM laser measure.
Where Construction Calculator Pro is different
It puts the calculator and the measuring tools in one app that you pay for once.
- Bought onceEvery feature is free for 14 days. After that, one $9.99 payment unlocks it for good on every device signed in to the same store account. There is no subscription. For comparison, Construction Master Pro’s yearly plan is $39.99 on the App Store.
- Measuring tools includedAn AR tape measure, spirit level, stud finder, sound meter, camera inspector and floor scan sit next to the calculator, so you can measure, calculate and record without switching apps.
- Diagrams you can checkEach trade calculator draws the job to scale, so you can see what the numbers describe before you cut.
- Records with photosSave any result with its date, time and optional location, add and mark up photos, and export a branded PDF or PNG for the client or the crew.
- English and SpanishThe whole app works in English or Spanish, including exports.
- No accountRecords stay on your device. There is no login, and the tools work with no signal.
Phone cameras and sensors give field estimates. Check cuts, code and safety-critical work with calibrated tools.
Which one fits your work
Pick Construction Master Pro if you already use the handheld, need trig or irregular hip and valley rafters, or want the app with the longest record.
Pick Construction Calculator Pro if you want feet-inch-fraction math, trade calculators with diagrams and measuring tools in one app that you pay for once.
Both start with a free 14-day trial, so you can try each one on a real job before you pay.
Sources
Every claim about Construction Master Pro comes from its own public pages, checked October 26, 2026. Our own price and features come from our App Store and Google Play listings.
- Construction Master Pro Calc on the App Store (US)Description, in-app purchase prices, ratings and compatibility.
- Construction Master Pro Calc on Google PlayDescription, rating, reviews, release date and in-app purchase range.
- Construction Master Pro App, calculated.comApp features, the app and handheld comparison, and iOS-only features.
- Construction Master Pro Handheld, calculated.comModel number and MSRP.
- About Calculated Industries, calculated.comCompany history and awards.