Not worth it
I love 40 thieves solitaire, but this game on my Touch, aside from being sadistically small, had an awkward interface (double tapping might turn a new card OR enlarge the screen; dragging might move a card or the whole tableau). Also buggy, where when I was positioning the tableau a face-down card mysteriously left the deck and settled on my playfield, and every new click caused a card to jump onto the facedowm card. Also, there are no options for alternative rules for play.
MamaNightOwl about
Forty Thieves - Solitaire Connection