The best part about this app was that it helped me understand my child's learning style better by providing different tests which I could use as reference points when talking with him/her or his teacher later! It also helps you track your progress throughout each test so there are no surprises at end of year testing time!! Sometimes they can be very difficult to navigate through especially if using them during school hours (at least where we live).
They don't always have all their content available offline like other apps do but online access does work well enough unless internet goes down unexpectedly. We've used these assessments before starting homeschooling our son who has ADHD & dyslexia along w autism spectrum disorder too - he scored quite high compared to others of similar age even though some were not tested until after 5th grade due to state requirements.