Yes, you can record your interview in any language you choose. After you record your interview in the app, you will be prompted to add labels to your audio file, including keywords (you will see keyword fields for General, Organizations and Places) that will describe the interview and make it easier to find your interview on the StoryCorps.me website.
We highly recommend that you add the name of your language as a keyword when prompted to add labels. For example, if you record in Spanish, you can add a keyword (under General) of "Spanish" or "Español".
If there are any organizations or places discussed at length in your interview, enter them in the appropriate field. Otherwise, enter your keywords in the General field, separated by commas.