To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
The bedtime explorers content is spot on. My very active 3yo is usually asleep before the end, although you recently started playing adds as soon as the app opens which is very unsettling when trying to get a child to sleep