The toolkit allows developers to upload some files related to translations. Of course, the translations are not perfect (good but not exceptional), but you can share your translations with others so that other translators, professionals or amateurs, so they can contribute to the translation made available online thanks to the editor by the same toolkit.
Obviously we are faced with a new service that will surely improve over time also considering the amount of applications on the Google Store Play. Now the developers of Android applications have a great and very useful additional tool, we will see a surge in the translation of the various applications? We just have to wait.