Yes, you can use Unsplash photos as part of a product you sell. For example, using an Unsplash photo on a website that sells a product or service is fine.
However you cannot sell an Unsplash photographer’s photo without first updating, modifying, or otherwise incorporating new creative elements into the photos. This includes selling the photos as prints or printed on physical goods.
As of March 18th, 2019, our Terms of Service restrict the sale of all Unsplash photos.
Under section 8G, Prohibited Conduct, by using the service you agree not to:
Sell copies of Photos without first significantly or meaningfully updating, modifying, or otherwise incorporating new creative elements into the Photos beyond simple retouches, resizing, or other minimal changes so long as they are not done by automated means (i.e., selling unaltered, slightly altered, or altered by automatic script copies of the Photos), including selling them as prints or printed on physical goods;
If you are going to sell a photo from Unsplash, you need to first meaningfully update, modify, or otherwise incorporate new creative elements into the Photo. Simple retouches, resizing, or other minimal changes won’t cut it. Ask yourself whether the photographer of the original photo would easily identify their work in your image. Have you transformed it enough to “make it your own” creative work, albeit being built on an Unsplash photo?
Like any good creative work, these updates and modifications can’t have been done by automated means. This has to reflect your creative process, not a script that applies an automated treatment to the Photo.