What is the difference between 因为 and 应为? They are pronounced similarly and are both translated into "because". What is the difference in their meaning? When should I use one over the other?
"应为" does not mean "because". If it is used as because, then it is an error, maybe a typo.

"应为" used together, it is usually two separate words, and can mean "should(应) be(为)".