Has anyone got the game Supple? Would you recommend buying it or not?

I recently downloaded the trial for the game Supple and I thought it was really good. I tried finding a version which was free, but haven't found anything other than Iwin which seems to crash alot for me. Has anyone paid for this game? If so would you say it was good value? I don't want to spend money on this game if it gets really boring. (I only did level 1 in the hour trial) Thank you ! :)