PhotoStamp is a free Android app developed by Double A 1991 Public Co. Ltd. that allows you to add information to your photos. It is categorized as a multimedia app under photography.

With PhotoStamp, you can add stamps to your photos that include GPS coordinates, date and time, location, name, position, and photo description. These stamps help you to explain the context of the photo and the situation when it was taken. You can also send this information back to the server to generate reports for decision-making purposes.

Overall, PhotoStamp is a useful app that adds value to your photos by providing necessary information. It is easy to use and is suitable for anyone who wants to add context to their photos.