National Tool Works

Simple, reliable utility tools for iPhone.

Applications

Plumb Precision spirit level & inclinometer

Bearing Compass, bearing & heading tool

FlipScore Score tracker for Flip 7 card game

About

National Tool Works builds simple, focused utility applications for iPhone and iPad. Our goal is to create small digital tools that do one job extremely well.

Each application is designed to be fast, reliable, and free of unnecessary complexity. Rather than large software suites, we focus on individual tools that solve practical problems in everyday work, navigation, and everyday play.

Design Philosophy

Our applications follow a straightforward design philosophy: software should behave like a physical tool.

Fast startup
Clear interfaces
Accurate measurements
No unnecessary features
Long-term reliability

Whether used on a job site, in the outdoors, or at the card table, each tool is designed to be dependable and easy to understand.

Technology

National Tool Works applications are written natively for iOS and make use of the sensors built into modern iPhone devices including accelerometers, gyroscopes, and magnetometers.

Where appropriate, applications incorporate augmented reality, live activities, and haptic feedback to provide real-time feedback while using the tool.

Privacy

National Tool Works applications do not collect personal information or track users across other applications or websites.

All measurements and saved data remain on your device unless you choose to export or share them.

Future Applications

National Tool Works is actively developing additional utility tools for iOS focused on measurement, navigation, and practical everyday use.

New applications will be announced here as they become available.

Recent Updates

2026 — Initial release of Plumb
2026 — Initial release of Bearing
2026 — Initial release of FlipScore

Support

For assistance with any application, contact support@nationaltoolworks.com.

Please include the app name and iOS version.