Yes, you can print 4x4 or 8x8 square prints from the Walgreens Photo Website. To order these size prints:
You can also print 4x4 or 8x8 square photos from your mobile phone via the Walgreens iPhone and Android apps, as well as the photo kiosk in a Walgreens store. The kiosk has connectors for most common camera phones and smartphones that allow you to order 4x4 or 8x8 square prints with no cropping. See your local Walgreens for additional details and instructions.