App for iOS allows the Apple iPhone 7 Plus to copy the black Portrait Lighting background from iPhone 8/X
Until now, those with the iPhone 7 Plus had to jailbreak their phone in order to access the feature. But now, a photography app named Focos that has already been sitting in the App Store, has added a new feature called "Black Portrait" mode that will allow the iPhone 7 Plus to use some of the same Portrait Lighting options found on the iPhone 8 Plus and iPhone X. Depth effects similar to what Portrait Lighting offers is available using the "Black Portrait" and "Background Picture" filters.
Focos is a free app and requires that the iPhone it is loaded on have a dual-camera setup for the "Black Portrait" mode. That means that the feature is only compatible with the iPhone 7 Plus, iPhone 8 Plus and iPhone X. All other computational photography features available from the app can be used on the Apple iPhone 5s or later, running iOS 11 or higher. To download the app on your phone, click on this link.