Saving Worlds for Beta Players

I would highly recommend that Beta Players get an option to save their worlds or move them to external. I don't know why the default setting of Minecraft PE is still save the world in the application. This is like mocking the players of the Pocket Edition and handle them as second class players. I for myself own ALL Versions of Minecraft but I still can't save my worlds from PE. Since Beta Players cannot access Realms, there should be at least an option for them to export and save their worlds if they want to leave Beta (for example to play with friends again). We are helping you to develop the game! At least give us the option to easily switch between Beta and Full Version.