Right Angle is a calculator specializes in solving triangles & segments of a circle.
Angles can be entered or calculated in degrees, radian, degrees minutes seconds, % grade, x over 12.
You can solve segments of circles and oblique triangles with optional add-ons. The right triangle calculator is included for free.
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy policy: http://rightangleapp.com/privacy.html