Singapore's largest taxi company Comfort Delgro (operating as Comfort and City Cab - blue livery and yellow, respectively) works with Uber. So far it's been Uber X but they just announced a program called Uber Flash that is cheaper than Uber X. https://sg.news.yahoo.com/uber-now-m...060251810.html

Anyway the article in this link will let you do your own price comparisons.