LSkat is described as 'Lieutenant Skat (from German "Offiziersskat") is a fun and engaging card game for two players, where the second player is either live opponent, or a built in artificial intelligence'. There are more than 10 alternatives to LSkat for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Windows. The best alternative is Solitaire.gg, which is free. Other great apps like LSkat are Solitaire Planet (Paid), World of Solitaire (Free), Microsoft Solitaire Collection (Freemium) and Patience Revisited (Free).
Solitaire.gg provides a huge collection of solitaire games including Klondike, FreeCell, Spider and many more. The entire collection is open-source and also playable online with just the right amount of options to configure basic settings and appearance.
Solitaire Planet is an immersive and highly configurable 3D solitaire collection for the desktop and mobile. Enjoy a whole world of solitaire games. Escape for minutes or for hours, you can always come back for endless entertainment.