The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
warning! this app has maleware and google has punished my search ranking and stopped running my adword account.
Really sorry you had such a bad experience first of all. I totally agree with this review but the mistake here is on Google's side as they marked our app as malware by some mistake in their automatic system.
After making a quick research about the topic I find out this is a real pain for a lot of app developers as Google just started to marking all script tags as malware and customers of course belief Google and angry with us, leaving one-star reviews.
You can see some discussions around this topic in the links below.
We are working on the way to find the solution to this problem.