Trig or Treat is an Android game developed by Math Training Apps that is designed to help students ace their next trigonometry test. This educational game is divided into three modules that include Unit Circle Angles, Trig Values, and Trig Inverse Values.

In the Unit Circle Angles module, players must guess the correct angle given the coordinates on the unit circle or guess the correct coordinates on the unit circle given the angle. In the Trig Values module, players must find the correct trigonometric value given the angle (in radians, degrees, or a mix of both). In the Trig Inverse Values module, players must find the correct inverse trigonometric value given the angle (in radians, degrees, or a mix of both).

For every correct answer, players receive one candy, and for every incorrect answer, they lose one candy. The goal is to collect 10 candies in total. The game ends when players have either collected all 10 candies or run out of candies. Trig or Treat is a free game that offers a fun and engaging way to practice trigonometry concepts.