OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
OptiMonk - OptiMonk is the most powerful Onsite Retargeting platform, that helps you increase the conversion rate of your site, and get more leads by recovering lost visitors.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Growthmysales - Increase e-commerce sales, grow email lists, and engage visitors effortlessly with our 5-minute simple popup builder.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.