Apple announced its ARKit developer tool back in June 2017 and since then, and the release of iOS 11, the popularity of iOS apps that take advantage of augmented reality — computer-generated imaged that overlay the real world — has skyrocketed. And it’s far from just gaming apps like Pokemon Go. There are measuring and navigation apps and creative and design apps, as well as apps that deal with shopping and education. And all of them allow you to interact with the world and your iPhone or iPad in a totally different way.
Note: In order to use augmented reality apps, you need to have an iPhone or iPad with an A9 chip or later. And it needs to updated with iOS 11 or later. That means the iPhone 6s and the 2017 iPad are the two oldest devices that can run these apps.
Solidhaus

This app is a 3D visualization tool for architects as it allows them to see their designs in augmented reality. The designs are to scale to, allowing whoever is using the app to walk around or through the AR models to get a better feel of what the place will be like. Solidhaus isn’t available yet, but you can sign up for the Beta. It’s designed to work on both iPhone and iPad Pro.