We have over 100 integrated apps with our photo printing API and offer a revenue share of up to 20% on the order once it's sold. Over 8200 locations in the US and many different photo products (https://developer.walgreens.com/page/quickprints-product-inf...).

Here are some of the many apps we are integrated with https://developer.walgreens.com/blog_categories/QuickPrints.