https://post.adobe.com/According to the site: "You can select a photo from your iPhones photo library, take a new photo, select from your Lightroom library or Creative Cloud images, or even choose from half a million gorgeous free stock photos."
I guess this doesn't leave a lot of room for contributor content, maybe with the possible of images from Adobe Stock in the future. I wonder where they get half a million images...maybe it's the free images on Fotolia.
Either way, it looks like Canva's got competition and Adobe's app looks more intuitive. Will have to download it try to it out day.