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Discover/Productivity/Hammer Construction Calculator

Product debut

Hammer Construction Calculator

Hammer Construction Calculator is an Apple app for trade math, 20 specialized tools, unit conversion, project takeoffs, and branded PDF estimates.

Made independentlyLaunched 2026/08/15

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Hammer Construction Calculator website screenshot

What it does

About Hammer Construction Calculator

Hammer Construction Calculator (HammerCalc) is a specialized application for job-site math, material takeoffs, and client quotes across Apple hardware. It equips tradespeople with 20 dedicated tools complete with live visual diagrams for framing, layout, finishes, and outdoor tasks. Users can work directly with mixed measurement units, open PDF blueprints or photos within an integrated plan viewer, attach timestamped calculation notes, and build project price books with labor and markup to export branded PDF estimates.

Availability:: launched
Access:: free trial
Format:: software
Platform:: ios
Platform:: macos

Pricing at launch: Offers a 7-day free trial followed by $3.99 per month or $24.99 per year, covering iPhone, iPad, and Mac under one subscription.

Core capabilities

Mixed-Unit Calculations

Allows mixing feet, inches, millimeters, and meters within one equation and converting the resulting value with a single tap.

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Specialized Trade Tools

Includes 20 trade tools featuring live diagrams for framing, layouts, finishes, and outdoor construction.

Takeoffs & Branded PDF Quoting

Sends calculated materials into a multi-project takeoff, sets unit prices, applies labor, markup, and tax, and exports branded PDF quotes.

Plan Viewer & Timestamped Notes

Opens PDF plans and photos while maintaining page zoom and position, saving calculation results directly into timestamped project notes.

Useful for

Performing job-site calculations for framing math, stair layouts, rafter cuts, board feet, and unit conversions.

Best for

Builders, carpenters, contractors, and estimators needing on-site calculations, material takeoffs, and PDF client estimates.

What stands out

Keeps all calculations, notes, and plans on the user's device without collecting developer telemetry.

Launch snapshot

At collection time

2026-08-14

Daily rank: —
Votes: 1
Comments: 0

Makers: Gary G

Productivity

At a glance

Product Identity: Hammer Construction Calculator (HammerCalc) is a job-site calculation, material takeoff, and estimation application.
Supported Platforms: Runs on iPhone (iOS 16+), iPad (iPadOS 16+), and Mac (macOS 12+).
Pricing Model: 7-day free trial, then $3.99/month or $24.99/year across all Apple devices.
Unit Support: Combines feet, inches, millimeters, and meters in single equations with one-tap conversions.
Trade Tools: Features 20 specialized tools with visual diagrams for framing, layout, and finish work.
Estimating Features: Transfers material outputs into takeoffs, manages price books, applies markup and tax, and exports PDF quotes.
Document Integration: Integrated viewer for PDF and photo plans alongside timestamped measurement notes.
Data Storage: Keeps calculations and documents local to the device with zero developer data collection.

Questions answered

Which devices support HammerCalc?

HammerCalc supports iPhone (iOS 16+), iPad (iPadOS 16+), and Mac (macOS 12+) under a single subscription.

What is the pricing model for HammerCalc?

HammerCalc includes a 7-day free trial. After the trial, subscription options are $3.99 per month or $24.99 per year.

Does HammerCalc collect personal data or store files on external servers?

No. All calculation data, plans, and notes remain stored locally on your Apple device, and no developer data is collected.

Sources checked

This profile is a launch-time summary, not a live price or feature guarantee. Sources were checked on 2026-08-15.

Official website
Official website
Official website
Official website

Launch details

Maker: Independent maker
Website: hammerstorm.co
Launch date: 2026/08/15

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