Instagram is a mobile, desktop, and internet-based photo-sharing application and service that allows users to share pictures and videos. Developed by Kevin Systrom and Mike Krieger
License: Free
500px is a platform primarily for photographers to showcase their work and connect with other professionals, while Instagram serves as a broader social media platform with diverse content types. 500px offers a curated experience for high-quality images, whereas Instagram emphasizes user engagement and social sharing.