The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
Dishonest practice of forcing you to write a review before getting to use the app. I would also be careful on this app since it seems to be fairly new.
As you requested, I just decided to close my free sale of premium features. Going forward, you'll have to pay 4.99USD/month of discounted price for the premium features. You got the honor of closing the free sale. Thank you.