Frequent crashes

The present 1.8 version crashes frequently at the point that it is unusable, do not buy it unless there is a new release.
I do not understand why it seems quite difficult for the developers to have their application accepted on the Apple Store, but then Apple does not even check if the application crashes.

I suggest to Apple to be a little bit more vigilant at least from the point of view of application stability, this is not the only application on the Apple Store with big stability problems.

Gianni2000ok about iCircuit, v1.8