What are some alternatives?
When comparing CircleCI and Travis CI, you can also consider the following products
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Codeship - Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.
Bitrise - Tens of thousands of agencies, startups and enterprise companies with mobile apps - including Runkeeper, Grindr, Duolingo and more - use Bitrise to automate their way to increased productivity & speed
TeamCity - TeamCity is an ultimate Continuous Integration tool for professionals
Bamboo - Bamboo is a continuous integration and deployment tool that ties automated builds, tests and releases together in a single workflow.
VSTS - Visual Studio dev tools & services make app development easy for any platform & language. Try our Mac & Windows code editor, IDE, or Azure DevOps for free.