Transferring your BTZS film test data to ExpoDev is really easy. From Plotter, just use the "export to ExpoDev" option to create the film profiles. Then you can just email the files to an account you can access on your iOS device. When you open these file attachments, ExpoDev on iOS will import the films into your library. Alternatively, you can also use the built in film management features of iTunes to transfer the files to you iOS device.

More details on the process are here, in the ExpoDev online manual: http://tinyoctopus.net/ExpoDev/Manual/filmprofiles.html