About this app
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.
Latest release
What’s New
Ads no longer interrupt you mid-task. Anything full-screen now waits until you have finished what you were doing, and the app stops showing a blank pause where an ad failed to load.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 18, 2026 · 2:58 AM Free
Screenshots
