Instagram is a fun and quirky way to share your life with friends through a series of pictures. Snap a photo with your mobile phone, then choose a filter to transform the image into a memory to keep around forever. We're building Instagram to allow you to experience moments in your friends' lives through pictures as they happen. We imagine a world more connected through photos.
We have adopted a follower model that means if you're "public" on Instagram, anyone can subscribe to follow your photos. We do, however, have a special private option. In this mode, a user can make sure he/she must approve all follow requests before they go through.