Still one of the most popular collage apps on the App Store, this is one of my favorite projects I've worked on, making a simple-yet-powerful creative tool for combining photos.
Collages were very popular on Instagram since the early days; we thought Instagram had an opportunity to develop a simpler solution that could address a key problem: users didn't feel comfortable sharing multiple photos on Instagram (this is before Stories and Carousel posts, mind you).
From the earliest designs I knew I wanted to solve numerous pain points that plagued most collage apps on the App Store. They required you to know the type of layout you wanted to use before you chose photos, and had way too much friction when you wanted to make changes to your collage.
User research validated these intuitions, and working with our data scientist we discovered an interesting fact about collages on Instagram: 90% of them featured faces. Instead of telling a story, collages were being used to showcase people's friends and families. This led us to add a "Faces" tab to make it easy to find photos with people in them, and helped up us prioritize features like auto-positioning photos to center faces instead of awkwardly cropping them.
Layout was such a satisfying project -- it allowed me to tap into my love of empowering creativity through software while collaborating with a small team of incredibly talented people PM (John Barnett), Eng (Bryan Summersett on iOS, Will Bailey & Nilesh Patel), Research (Maya Kuehn), Content Strategy (Holly Burns) and Data Science (Audric Collignon). The results are an app that people still love to this day.