What are some alternatives?
When comparing Uber on Messenger and SimPholders, you can also consider the following products
fastlane - Connect all iOS deployment tools into one streamlined workflow
IBM MobileFirst - IBM MobileFirst provides enterprise mobility solutions.
Smart Ride - Order an Uber without a smartphone
Evothings - Evothings is a mobile application enabler for the Internet of Things (IoT) industry
Uber Chrome - Call an Uber from your Desktop
B4X - Cross platform development tools for native iOS, Android, desktop and server applications.