9 Ball Pro is a pool variant where the aim is to pocket the lowest numbered-ball every turn, leaving the nine-ball till last. You can challenge a bot, choosing from 3 levels of difficulty, or play against a friend on the same device.
Snooker
Pro Billiards
This is a modern pool in which you can play alone on a timer, and also together on one device. Rules as in the present pool 8 ball. Good luck to you, gentlemen!