AATBS is a long-running licensing-exam publisher, and its BCBA Exam Prep Self-Study Bundle is aligned to the 6th Edition Test Content Outline. For $199 you get an assessment exam to start, three full-length mocks, three mini-mocks and 14 quizzes (1,200+ questions), six months of access extendable to two years, and unlimited access until you pass under its guarantee.
The opening Assessment Exam gives you a baseline, and AATBS says its practice exams help you gauge your exam readiness. It doesn't advertise a readiness score, pass prediction or adaptive plan, so turning those scores into a schedule is left to you.
Edureify's diagnostic covers behavior-change principles and procedures, professional ethics, and behavior assessment, then feeds an adaptive roadmap and a Readiness Score that projects a ready-by date and refreshes after every session.