A photo sharing app is a digital platform that allows users to upload, edit, and share images with friends, family, or the public. These apps often come with features like filters, captions, tagging, and privacy settings to enhance the user experience. Popular photo sharing apps also integrate social networking elements, enabling users to like, comment, and interact with shared photos. Whether used for personal memories or professional portfolios, these apps have revolutionized the way people share visual content online.