Various face aging software exists; however, three University of Washington researchers developed the first software that enables users to take a photo of a 3-year-old child and have the software age it up to 80 years old, according to a claim by one of its developers, Ira Kemelmacher-Shlizerman. Google funded part of the program's research.
Some age progression software, such as the AgingBooth application, is more for fun. They enable users to morph faces into images that show the passage of time.
Others take the task more seriously. Software like the APRIL Face Aging Software shows the effects of lifestyle over time. Users can compare what they would look like with natural aging versus if they smoked, for instance.