Protractor is an accurate angle measuring tool. Generate one or more screen protractors on the screen like real protractors so that you can measure angles without having a real protractor.

List of adaptive devices:
- iPhone 4,
- iPhone 4S,
- iPhone 5,
- iPhone 5c,
- iPhone 5s,
- iPhone SE,
- iPhone 6,
- iPhone 6 Plus,
- iPhone 6s,
- iPhone 6s Plus,
- iPhone 7,
- iPhone 7 Plus,
- iPhone 8,
- iPhone 8 Plus,
- iPhone X,
- iPhone XR,
- iPhone XS,
- iPhone XS Max,
- iPhone 11,
- iPhone 11 Pro,
- iPhone 11 Pro Max,
- iPad 1,
- iPad 2,
- iPad (3rd generation),
- iPad (4th generation),
- iPad mini 1,
- iPad mini 2,
- iPad mini 3,
- iPad mini 4,
- iPad mini (5th generation),
- iPad Air 1,
- iPad Air 2,
- iPad Air (3rd generation),
- iPad Pro (9.7-inch),
- iPad Pro (10.5-inch),
- iPad Pro (12.9-inch),
- iPad Pro (12.9-inch) (2nd generation),
- iPad Pro (11-inch),
- iPad Pro (12.9-inch) (3rd generation),
- iPad (5th generation),
- iPad (6th generation).