Boy Howdy Solitaire Collection is a free card game for iPhone that includes seven classic solitaire games: Klondike, Spider, Double Deck, Pyramid, FreeCell, Forty Thieves, and Tri Peaks. With fast and intuitive controls, you can easily tap or drag cards and stacks to move them around the table. The game features beautiful and easy-to-read cards and does not include timers, so you can relax and play at your own pace.

This game offers unlimited undo support, allowing you to go back and try different strategies without any penalties. Additionally, the auto-highlight feature shows which cards can be moved and which are stuck under others until you free them up. Boy Howdy Solitaire Collection also includes global high score leaderboards with Game Center, so you can compete against other players worldwide. Your progress is automatically saved, allowing you to take a break and return to the game at any time. Finally, you have the option to disable sounds or even listen to your own music while playing.

Overall, Boy Howdy Solitaire Collection is a great choice for those who love classic solitaire games and want a relaxing and free experience on their iPhone.