PMI, which owns and administers DASM, publishes its own official guides and offers PMI-authorized training partner courses mapped directly to the exam content outline. Because it's the source of the exam itself, alignment is guaranteed.
What PMI's own materials don't provide is individualized, tracked readiness over time — official guides are reference material, and authorized training runs on a provider's schedule with a fixed curriculum, not adapted to your specific comprehension gaps.
Edureify's curriculum is built on the same PMI content outline, but the Diagnostic identifies specifically which of the Disciplined Agile toolkit's principles and process decision-making is still unclear, and the roadmap keeps you there until your Readiness Score improves — which reading official guides alone doesn't measure.