Free Download

Take the calculators with you.

BuiltWright Calcs for Android. Same accurate math as the web version. No ads, no accounts, no tracking. Works offline. Free forever.

Free download No account required No ads Works offline

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BuiltWright Calcs

Android APK • Requires Android 10 or later

Download APK

Requires Android 10+ • Not on Google Play

What you get.

All four calculators, offline

Fraction, baluster, area, and board foot. Available wherever you go, no signal needed.

Seven color themes

More options than the web version. Customize the look to your trade or your preference.

Customizable dashboard

Pin the calcs you use most. Hide the ones you don't. Make the app match your work.

Work saves between sessions

Open the app and pick up where you left off. Your last calculation stays put.

No ads, no accounts, no tracking

The app does what it says and nothing else. No analytics, no sign-ups, no ads. Ever.

Free, forever

No paywalls now, no paywalls later. A free tool built by a finish carpenter.

How to install.

  1. Tap the download button above and wait for the file to finish downloading.
  2. Open the file from your browser's Downloads notification or Downloads folder.
  3. When prompted, tap Settings, then enable "Allow from this source" to permit installs from your browser.
  4. Return to the install prompt and tap Install.
  5. Open BuiltWright Calcs from your home screen.
About the "unknown apps" warning: Because BuiltWright Calcs is not on Google Play, Android will show a security prompt when you install. This is standard for any sideloaded app. The file is safe and cryptographically signed by BuiltWright Softworks.

File integrity — SHA-256 checksum. Compare this against the downloaded file to verify it has not been modified.

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Questions or feedback? Email builtwrightapp@gmail.com anytime. We read every message.