Wunderlist is shutting down on May 6, 2020, and users can continue using the app until then. Microsoft To Do, a spiritual successor to Wunderlist, offers a familiar interface and integrates well with Outlook and other Microsoft tools. Users have options for migrating their tasks to other apps, including exporting data or using Zapier integrations with various services like Trello and Google Tasks. The shutdown is not due to a decline in quality or popularity but rather as part of Microsoft's planned transition. Users are encouraged to migrate sooner rather than later to find an alternative that suits them best.