https://techcrunch.com/2018/03/06/google-brings-lens-to-all-google-photos-users-on-android/

Google Lens, the company’s visual search engine that can recognize what’s in your images and scan business cards, among other things, is now rolling out to all Google Photos users on Android. This marks Google’s first major expansion for Lens, which was previously only available to those who had access to the latest Pixel phones. On those phones, Lens is also available through the Google Assistant, but that feature isn’t rolling out to all Android users yet.

Google promises that Lens in Google Photos will roll out to iOS users “soon,” but it’s unclear when exactly this will happen.