While the "gold standard" paid banks (like Aviation Exam, Bristol, or BGS) are fantastic, a strategic use of combined with solid theory can get you a pass—and sometimes even a 90%+ score.
Do not touch a question bank until you have read a textbook (Oxford, CBT, or EasyATPL). If you start with questions, you will memorize the letters (A, B, C) but fail the exam when the wording changes. atpl free question bank
But here is the good news:
Use the free forums. Do 300 questions on Meteorology. Every time you get one wrong, do not just read the answer. Open your textbook and read the chapter that question came from. Understand why the cumulonimbus cloud is dangerous, not just that the answer is "Hail." While the "gold standard" paid banks (like Aviation