Ranked in these QuestionsQuestion Ranking
Pro Free for open source projects
Travis is free for all public repositories on Github.
Pro Github integration
Travis registers every push to GitHub and automatically builds the branch by default.
Pro Easy to set up and configure
All that is needed to set up Travis is a configuration file (travis.yml) in the root of the repository where it will be installed and Travis takes care of the rest.
Pro Supports most technological stacks
Supports the most widely used technological stacks (Node, Ruby, PHP, Python etc...) for free.
Pro OSX & Ubuntu support
Travis' VM are built on Ubuntu 12.04 64 bit Server Edition, with the exception of Objective-C builds, which are based on Mac OS X Mavericks.
Pro Multiple test environments for different runtime versions
Travis supports testing for different versions of the same runtime. All it takes is some lines in the
Pro Private repositories and personal support w/ TravisPro
Starting at $129 you can use TravisPro, that adds the option of closed-source, private, repositories and personal support.
Pro Great community
Travis CI has a large and helpful community which is quite accepting to new users and provides a great number of tutorials.
Pro Excellent website user experience
Pro Supports more than a dozen languages
Con Only GitHub support
It does not support BitBucket. So it's not in list for companies using BitBucket private or public repositories.
Con Relatively expensive
Commercial plans for Travis are relatively expensive compared to other tools. They start at $129/month.
Con Non-free for private repos
Travis CI was first built to serve and help Open Source Projects, but now they also have added support for Closed Source which unfortunately is not free.
Con No Windows support
Travis can only run tests on Linux and OS X operating systems; running tests on Windows is not currently supported.