Multi-image products are traditionally difficult to design on a web-based browser system as many images need to be picked and dragged into “photo-wells”. This is tiresome for the average user.
A mobile-forward experience is naturally suited to such products as the mobile phone is where users typically also have their Instagram and Facebook accounts logged in always. Such photos from social media are also already down-sized, hence making them unsuitable for printing anything larger than a 4×6.
However, when they are laid out into a hyper-collage, you can now sell large wall art, or small photo strips. This allows app owners to introduce products across the entire price range from a $1 photo strips, to $100 life-sized wall decor!