Now and Then, developed by Geneanet, is a free Android app that allows users to compare a present-day scene with a historical photo of the same location. The app superimposes old photos on present-day scenes, providing a unique glimpse into the past.

The app also features a database of geolocated old postcards, allowing users to discover places as they were years ago. This feature is especially helpful for those interested in tracing the history of their ancestors. With Now and Then, users can participate in this exciting experience by taking a picture of a present-day scene where an old photo is available and comparing the two.