fastlane

fastlane is an automation tool for building and releasing iOS and Android apps. Developers use it to streamline tedious tasks in their development and release workflows, including generating localized app store screenshots, distributing beta builds to testers, submitting apps to app stores, managing code signing, and integrating with continuous integration services. The tool supports numerous beta testing platforms and app store deployment processes, allowing teams to automate repetitive steps like building, uploading, and versioning their applications.

fastlane is an open source platform developed by fastlane and licensed under the MIT license. It is written in Ruby and can be extended through community-built actions and plugins. The tool enables developers to create custom, repeatable workflows that reduce manual intervention and allow team members to generate signed builds and releases from any machine.