I am trying to decide what school to apply to?
Are you thinking about a public school or a private one?
I am not sure. What's the difference between them?
Public schools are usually state funded, whereas private schools usually get their funding elsewhere.
Which is better?
One isn't necessarily better than the other. It depends a lot on the school administration and the teachers.
I hear you have to wear uniforms at private schools.
Yes, sometimes.