Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Asklayer.io - Get real answers from your customers with Asklayers surveys, quizzes, polls and more. Works on any website with zero code and includes enterprise level features such auto-segmentation, user tagging, branching, NPS & CSAT calculation.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
Ask User - User surveys without stress
Codeship - Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.
Doorbell.io - Collect in-app user feedback. Available on websites, iOS, and Android.