vovu comes from Ugur Kubat. The object is to hit the big red circles to get small red circles to rotate to free the green circles. Where things get complicated is when there are several big red circles. Undoubtedly the overall design is very artistic.
It's a very fun game. Looks like Hook from 2015.
There are 70 levels and I've done 53. There are ads, but they are minimal annoying.
https://itunes.apple.com/us/app/vovu/id1435900520? mt = 8