I like the idea. I found it a little difficult to understand what was going on as I was playing; clicking the play button would often draw a line straight from the start to the finish (probably because I clicked somewhere at the start accidentally beforehand lol), and for whatever reason, just clicking the play button a bunch of times would cause the level to be completed even if I didn't draw an accurate prediction line at all. I played the game properly the second time around when I knew what I was doing, but it was trivial since I had already seen what the apple would do from the first run haha.
Regardless, I still think the idea is neat, and the audio/visuals have a lot of charm to them :)