Ezy Trigonometry is a friendly tool designed to help students understand trigonometry.
+ Interactive unit circle. Allows exploring relations between angles and trigonometric ratios.
+ Bundled with an exact trigonometric ratios table
+ Bundled with a hand book of trigonometric formulas
+ Flexible settings: radians / degrees, related angles, angle snapping
+ Full support for iPhone / iPad and retina display
* Tap & Hold to switch unit circle mode