Simple Design But Very Unstable

I browsed through a bunch of school apps to get organized before school starts. I got iStudiez Pro, iProcrastinate, and obviously Schoolhouse. When I saw the previews for Schoolhouse, I was excited because it looked simple and straight forward. I read the reviews about there being lots to set up but thats normal for any app that you can customize so much so I understood that. What I didnt understand is why it was so unstable on my computer. I added one course, changed the name, and tried to change other things about the course like the colour and the entire app either closed on me or wouldnt let me press the "OK" button after I chose my colour. Im still looking for a great app for school. Maybe with some changes and more stability, this one could be it. Until then, 2 stars for its potential.

beeoh about Schoolhouse, v3.2.1