The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
No free plan available, only a free trail. Plus App is not working it keep saying "Server Error". You better not charge me anything because i'm deleting this useless App immediately.
Finally, the app has Free plan from now. We have just released a big upgraded version (Better user experience, changed app appearance, up-to-date API and more features). You can try it again and I think you will love it