Hi Airone2977,
In my BQ invitation it was said that no special preparation is required and there was 2 of ~9 test model examples available via URL in the mail (two models is how ATPL and English exams looks like). So I didn't use any software for preparation and I passed it. But I should mention that I'm good in math and attention so if you are not - do skytest prep. Unfortunately it is strictly forbidden to disclose what tests are in details.
Awaiting for sim assessment now