What You Study
Wastewater treatment, collections, water treatment, or any mix. Then set the level you have now and the one you are studying for.
Where Are You Taking Your Exam?
Levels go from easiest to hardest. Choose your state or province to see your own level names.
Appearance
Text Size
Text grows and wraps; buttons and screens stay where they are.
Tactile Feedback
A light tap you can feel when you press a button. iPhone app only.
Mute Narration
Starts narrated lessons, such as the Laboratory course, with the sound off. You can still turn it on in a lesson.
Language
More languages are on the way.
