Circle Stop is a one button game that is free with zero in app purchases or advertisements.
Ranked in these QuestionsQuestion Ranking
Pro Somewhat metatative
Circle Stop is best played when on wants to relax.
Pro Very simple game mechanic
Circle Stop has a very simple one touch game mechanic in that all the player needs to do is tap the screen when one circle rotating on the screen coincides in placement with a target circle.
Con Not a lot of content
Circle Stop has just the one game mode, no unlockables, no achievements.