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
Instagram is a widely-used platform with a focus on photo and video sharing, offering numerous features like shopping and Stories, but it has privacy concerns and ads. Ello, on the other hand, caters to artists and creatives with an ad-free experience, but lacks the extensive features and user base of Instagram.