Google Lens is now available on iOS
https://www.theverge.com/2018/3/16/17128518/google-lens-available-ios-photos-apple
Google is officially rolling out its Lens feature to Apple iOS devices over the next few weeks. Lens is an on-demand object recognition tool, accessible through the Google Photos app. When users take a photo of a book or painting, for example, Lens recognizes it and spits out information telling you more details about the object.
Lens works on photos of business cards, books, landmarks and buildings, paintings in a museum, plants or animals, and flyers and event billboards. When you use Lens on a photo that has phone numbers or an address, you can automatically save this information as a contact on your phone, while events will be added to your calendar.