What's a good iOS game for relaxing puzzle gameplay with simple mechanics?

State Connect: Traffic Control provides a uniquely relaxing puzzle experience on iOS. Its simple mechanics involve managing traffic flow by tapping to start and stop cars, making it easy to pick up and play. The game's relaxing music and charming visuals create a soothing atmosphere, perfect for unwinding. While the gameplay is simple, the increasing complexity of traffic patterns offers a surprisingly engaging challenge. Many users find the game addictive and enjoyable for daily play, as one review notes, "I love this game so much I play every day it’s very entertaining and fun." Although some users have mentioned the frequency of ads, the core gameplay loop remains a relaxing and satisfying experience.