For the moment, it is not possible to upload a project to your profile or course from Domestika's app. We apologize for the inconvenience!
To do so, you should access your account from our website and follow the steps which appear in the following article: I want to add a project, how do I do that?
If you are a student of one or more courses in Domestika, you will be able to upload your comments and tasks to the course's forum. For more information, please take a look at this article: How do I participate in the Forum of my course from the app?