We have seen what CI and CD are, along with their benefits for you. Public or ad hoc distribution can be initiated by the build server. You can use a build server, such as TeamCity or Jenkins to build and test your app.
Ad hoc releases can be distributed using HockeyApp, Fabric Beta, or the beta programs of the Play Store or App Store. Fastlane can help you with these and other tasks. By now, you probably have learned a lot already.
CI and CD are important if you want to improve and maintain the quality of your code and if you want to optimize your workflow. It allows you to gather feedback since you are able to release early and often. CI/CD and a DevOps culture can help you with the optimization of the build-measure-feedback loop.
In the next chapter we will learn why building an unfair advantage is important if you want to succeed and if you want to survive as a company...