The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
Tin Can Sally
I installed this in April of 2017. It is now January 2018 and I do not see any benefit. This is so invisible, I have no idea if I even purchased a product. Basically I am giving 2 stars for the customer service which is friendly and prompt. But, the replies to my questions about how this thing works still have me puzzled.