The app draws forms like the one shown in image 01. The form consists of a line which has two parts. One is 100% lightblue. The other is the same color and expanded and blurred. The two parts make up the line.
Each form has a starting point and an animation runs the line to its end. After that the screen goes black. The user is supposed to retrace the form. A bigger (invisible) form represents the borders in which the form is retraced successfully (image 02).
If the form is not drawn at all the app runs the animation again.
If the form is not drawn succesfully the app runs the next animated form.
When the form is traced successfully it lights up. It lights up in an expanded version of the actually drawn form. See image 03 for this.
At first the app has 10 different forms. This description and project is for producing an app which is ready for testing.