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.
A good product, but the image was flipped and it changed on the paper, depending on your perspective or angle of view. That takes a while to get used to. The point that your pencil is on the paper is not the same as where you see it. This is probably better for beginners who like to trace, rather than someone who wants to develop their own style.
The products app is horrible let's you use it 10 times before you have to re enter the QR code to get another 10 times. The appn also in another language for the most part. And if you want to complain to them good luck the web site is in another language as well. Also you may have to re download the app multiple times when it freeze or doesn't load. The instructions are horrible and do not explain much.Great idea horrible execution.