FreeCell is a classic game of solitaire that requires skill and foresight. You can only move one card at-a-time, but groups of cards can be moved if there are enough free cells. This is called a "supermove".
All games are free to play. No in-app purchases.
Not challenged enough by classic FreeCell with four free cells, try 3Cell, 2Cell or the notoriously difficult 1Cell.