Cardinal Blue makes PicCollage, a social photo collage app on iOS, Android and Windows 10. It is a Top 10 Photography app in the US, UK, and other countries, and allows you to easily create free-form collages from your mobile photos, and share with your friends and family through social media or print products. Previously, Cardinal Blue built apps on the Facebook platform, including Tribute Balloon and Friend Stock Market, with millions of daily active users.They develop in Ruby on Rails and were selected as a Heroku success story. The company has received investment from Floodgate, Freestyle Capital, 500 Startups, and is based in Mountain View, CA and Taipei, Taiwan.