This is a free iPhone 7 mock-up for Adobe Photoshop and Sketch. It includes a perspective view of the phone in every color variation: Space Gray, Gold, Silver, White and Black Matte.
For the .sketch version you need to install a MagicMirror plugin.
For the Photoshop version, switching between colors is really easy. All the color versions are included in the same PSD file, each in a separate layer group, so switching to a color is as simple as activating a layer. There are also smart layers of the screen, which you can easily change with an image of your own.
In terms of license you can use the product in your personal and commercial projects for free.Download