Publishing an app to the stores is a long and cumbersome process; it may well take a full day of work for the first publishing, and then hours for each update you make to the app. That's why automation tools such as fastlane can boost your productivity by automating several tasks required to deal with the publishing process and keep you focused on designing and developing your apps.
For more information about fastlane, have a look at https://fastlane.tools/.
You will now see the setup and configuration process for fastlane.
