We have a mobile app that has both Android and iOS versions. Each version has its own JIRA project, but the functionality for both versions is very similar. Because of this I would like to share User Stories between the iOS and Android versions of the app.
What is the best way to achieve this? Because the Android and iOS versions are in different projects, I can’t create a User Story in one project and sub-tasks in the appropriate projects because the User Story / sub-task relationship cannot cross project boundaries.