150 Card Games Solitaire Pack is a free solitaire card game app developed by RikkiGames Limited that features an extensive collection of over 230 solitaire games. The app includes popular games such as Klondike, Spider, FreeCell, Pyramid, Tri Peaks, Golf, and many more. With over a million downloads worldwide, this app is now available on iPhone and iPad.

The app is divided into two sections, with the first section unlocked and the second section containing an additional 125 solitaire card games split up into 10 different packs. Players have to earn stars by successfully completing games to unlock the next pack of games. The app provides rules for each game, leaderboards, achievements, customisation of appearance with HD backgrounds and cards, landscape and portrait orientation, favourites, and unlimited undo and redo options. The app is optimised for both iPhone and iPad, ensuring smooth functionality.