Airquiz doesn't contain the actual questions - but similar questions and covers the topic areas.
PPL Confuser is reputed to be out of date now.
EASA PPL Exam Secrets Guides includes many of the current official questions, but don't expect them all to be in it (it is suspiciously close to the earlier papers but as the papers become more recent, there are more and more questions missing from it). It is up to the invigilator which paper you get. The later ones (in my student opinion) have less issues in them which probably makes them more straight forward anyway.
But you should learn the subjects first, then do practice papers. Just learning the answers wont help you in the long term. Chances are that the papers are going to be refreshed fairly soon, now that we are in EASA land.