Skylum (formerly Macphun) is a software developing company based in Bellevue, Washington. It is most known for its photo editing software Aurora HDR and Luminar. Skylum is also the developer of Snapheal, Focus, Tonality, Intensify, Noiseless and FX Photo Studio. Founded as Macphun in 2008, the company decided to change its name to Skylum in 2017, following the decision to develop its Mac only software for Windows as well.