What are the distinctions? From what is shown in the screenshots and dev posts, it looks like a direct clone of Snakebird but with fewer gameplay features (no multi-snake levels or pushable blocks) and worse level design.
I'm not going to touch some superficial differences (skins, level editor), so here's a difference in mechanics: in Snakebird, you can't move if your head touches the tail. Here, you can freely move in a circular fashion (like in classic Snake), which is integral to solving quite a few levels.
Snakebird regularly goes on sale for the same price or lower than this one, and is better in most ways. I feel bad for anyone who picked up this game not knowing about the better option available.