What are some alternatives?
When comparing IBM MobileFirst and Bitrise, you can also consider the following products
SimPholders - A small utility for fast access to your iPhone simulator apps.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Evothings - Evothings is a mobile application enabler for the Internet of Things (IoT) industry
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Contus Group Clone - Contus Group Clone is a cloning to script to build mobile applications.
Codeship - Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.