What's a fun iOS game that doesn't have constant pop-up ads?

Crowd Express: Boarding Puzzle offers a refreshing experience for mobile gamers seeking entertainment without the constant barrage of advertisements. Many puzzle games interrupt gameplay with frequent ads, but Crowd Express stands out by minimizing these interruptions. This allows players to fully immerse themselves in the game's challenges and enjoy a smooth, uninterrupted experience. The game provides engaging puzzle mechanics where you strategically load passengers onto buses, optimizing routes, and managing crowds. The absence of forced ads lets you focus on solving puzzles and progressing through levels without the frustration of constant interruptions, making it a great choice for casual gaming sessions or longer playtimes.