I tested several Oracle database schema and data comparison tools before deciding to purchase the dbForge Compare Bundle for Oracle. One of the convenient options for the comparable Red Gate Deployment Suite for Oracle is a SQL Developer extension that adds toolbar buttons to launch the applications. After looking into the Oracle SQL Developer tools menu, I found that adding launchers for external applications is fairly easy.
I recorded a YouTube video showing the configuration steps necessary to add dbForge Data and Schema Compare launchers to the SQL Developer toolbar. Enjoy.