All artwork that you upload to Marcel Via Mobile or desktop remains private and your portfolio alone unless you off to establish a web gallery. You can learn more about the web gallery here. When you elect to share an artwork via email, Instagram, or other sharing apps, Marcel prompts you to include or leave out metadata points of your choosing.
we recommend that you connect your iPhone to Wi-Fi an uploading large volumes of artwork from desktop upload. This is a one-time event, once they have synced for the first time, you are images are locally cached and readily available to you.