Thoughts - Rose Apple

Normally I look at the normal rose apple, its slightly bigger and longer.. So I don't really understand why it is called as such.
But seeing this one here, I know why ... it looked like an apple from the back ... reddish, a bit rounded and the flesh is also white... but from the front, the curled part of the fruit looks like petals and probably that's why it is called Rose Apple!
Just thinking how this name come about hee...