You can make a calculator with your photograph in iPhone and iPad. Why don't you pride yourself on using this calculator with your family, trip, or etc. ?
And you can choose the images on any web site for this calc.
First, seach the images. Second, visit the site. Next, keep your finger on an image you like and save it. Finally, you select it on this calc.

This calc will ask you to allow to see your location data. Because your photographs may have location data. This calc don't read your location data, but need your permission to read a photograph you selected before. If you don't allow it, this calc can't read a photograph.