Lara Croft: Relic Run
Tapping is used for aiming and shooting in Lara Croft: Relic Run. During Combat Sequences tapping a finger on the Touchscreen where an enemy stands will make Lara shoot her selected Weapons. Lara can also shoot Crates in the same way.
Lara Croft GO
There are two uses of tapping in Lara Croft GO: Lara can oven Secret Vases by tapping on them. Also, if she has collected a Spear, she can throw it at any enemy that is at least two steps away as long as there is no obstacle blocking the way.