I never tried photopills, I think it's iOS only. Besides the Augmented Reality feature, Sun Locator also has a map view that shows a 3D sun dial projecting the

I never tried photopills, I think it's iOS only. Besides the Augmented Reality feature, Sun Locator also has a map view that shows a 3D sun dial projecting the shadow on the chosen date/time that helps you to assess the shadow length and direction. One thing that I think is the main advantage over other popular sun position apps is the ease of use, while still showing all the relevant information.