ET-Cam is an app for helping beginners who dont own a camera that wanted to learn and practice the exposure triangle to produce photos wanted.
The user can learn the exposure triangle as the fundamental thing in photography, then can try and simulate the settings in the camera simulator.
In the simulator, the user can set the ISO, aperture, and shutter speed value, and can take a photo based on the setting that will be saved to the iPhone to see the photo produced.