Mahjong Connect is a different game from mahjong solitaire despite the name: instead of removing tiles that are free on one side, you connect two matching tiles with a path that turns no more than twice and isn't blocked.
The Deluxe edition adds time freeze and extra hints, plus a shop for new backgrounds and tile sets bought with the coins you collect.
In Connect, you link two matching tiles with a path that turns no more than twice. In solitaire, you remove tiles that are free on their left or right and uncovered — a completely different constraint.
Time freeze, extra hints, and a shop for backgrounds and tile sets bought with collected coins.
Yes — tap two matching tiles. Nothing to install.