This webapp doesn't ask you for any private information, only your Instagram username, so it can look up which pictures had the most likes throughout 2015. You can look up your own pictures, and also those of any other person you follow, be it a celebrity or someone else you know.
After a few minutes of analyzing your profile, 2015 Best Nine shows a collage with the nine most popular pictures of 2015. You can share this directly on your Instagram profile or on other social networks, such as Facebook or Twitter (with a #2015bestnine hashtag).
Ready to find out which were your best pictures of 2015?