This app was mentioned in 3 comments, with an average of 1.33 upvotes
Here is another example that has the same gameplay and share some resources.
https://play.google.com/store/apps/details?id=com.ketchapp.circle
https://play.google.com/store/apps/details?id=jp.co.goodia.Simple23
I've recently been playing a lot of Circle. But i've been playing Bloons Tower Defense 5 since 2012.