For projects that you had prior to subscribing, these can be copied to the cloud from your iOS device. To do this:
1) Navigate to the Project you wish to copy.
2) Tap on "More Actions".
3) Tap on "Copy to Cloud".
4) On the next screen, you can select a folder to save this project to, as well as set options on any information you wish to exclude from the copied project.
5) Tap "Copy to Cloud" in the top right to finish this process.