"On Instruments" is a full version iPhone game developed by Aircraft Training Aids LLC. It offers a unique opportunity to practice and enhance your IFR instrument scanning skills. The game consists of various courses that challenge players with precise heading, altitude, and airspeed changes to maximize their scores.

Players can choose from Easy, Intermediate, and Expert levels to test their skills. Additionally, there are courses available without guidance, providing an extra challenge. For a more realistic experience, there is a series of courses where players must navigate with an Attitude Indicator failure, adding an extra layer of complexity to the game.