Bests & Worsts Reviews from Amazon

Waste of money. Tiring & frustrating. I'm on Kindle Fire 7 (non-HD, 2015) There are no helpful tips for running the app on a Kindle Tablet, no links on the PBS Kids site that I can find for help, despite multiple statements of a "form" to request help if the suggested fixes for Apple devices don't work. The app doesn't even show a load screen before crashing. It shows the standard computer device "loading" swirl-circle on a blank screen or app icon, then flashes black and reloads the Kindle's home page. I've un-installed, reinstalled, reset and restarted, removed the app from everything but my account itself, done everything I can think short of factory resetting. The app may as well be junk.