Protractor+ Angle

Gyroscope Angle Meter

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Measure angles with gyroscope and camera precision. Perfect for construction, carpentry, and DIY projects with multiple measurement modes. Protractor+ Angle measures angles precisely using your iPhone's gyroscope and camera. Whether you need to measure a surface angle, check a slope, or verify construction geometry, this app delivers accurate results. Use the gyroscope mode to measure angles by placing your phone on any surface. The camera mode lets you measure angles visually by aligning reference lines on your screen with the edges you want to measure. Perfect for carpentry, construction, DIY projects, and educational purposes. Measure roof pitch, pipe angles, furniture assembly angles, and more with professional-level accuracy. Hold and lock readings for easy reference. Switch between degrees, radians, and percentage slope formats. Clean, precise interface designed for quick measurements in the field.

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- Improved ad configuration for better performance - Enhanced stability and reliability - Bug fixes and optimisations

Version 1.0.6

The developer, Kyu-Hee Jang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Provider
  • Kyu-Hee Jang
Size
  • 34.8 MB
Category
  • Utilities
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
18+
Copyright
  • © Copyright 2026 Simon Jang. All rights reserved.
  • Developer Website
  • Privacy Policy

    • More by Kyu-Hee Jang