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- Measure angles with a screen protractor or on a photo, and read tilt with your phone.
Measure angles on the screen or on a photo, and read tilt with your phone.
A protractor that opens straight to the dial. Lay an object on the screen, place three points on a photo, or stand the phone on an edge to read a tilt. ■ Screen protractor - A full 360° dial with marks every degree and bold marks every 15°. - Drag either arm, or move the centre dot anywhere on the screen. - Tap the number to type an angle, and the arm turns to it. - Half degree buttons for small turns, and a lock so the arms stay put. - The arm sticks to 15°, 30°, 45° and other multiples of 15° when it comes close. You can turn this off. - Read clockwise or counterclockwise. ■ Angle on a photo - Pick a photo from your gallery, take one with your camera app, or share a photo to the app. - Place a corner point and two arm points. A magnifier shows what is under your finger. - Pinch to zoom in for small details. - Save or share the photo with the angle marked on it. ■ Tilt - Lay the phone flat to see front–back and left–right tilt with a bubble. - Stand it on an edge to read the angle of that edge. - Set zero on a surface you trust, and hold a reading to look at it later. - The number turns to stay upright when the phone is on its side. ■ How your photos are handled - Only the photos you choose are read. They stay on your device and are not uploaded. - The app does not ask for camera permission. Taking a photo opens your own camera app. - A marked photo leaves the app only when you save or share it. ■ Good to know - An angle on a photo is true only when the photo is taken straight on. A photo taken at a slant changes how angles look. - Tilt readings depend on your phone's sensor. Setting zero on a flat surface helps. - On the screen protractor your finger sets the limit, so use the half degree buttons or type the angle.