"After testing the feature on both Android and iOS in recent weeks, Instagram today announced that it's officially launching multi-account support inside the photo sharing social app. Now, users can maintain more than one account on the same device. The process is pretty simple. Tap your username at the top of your profile to switch between Instagram accounts. Your profile photo will be placed more prominently throughout the app so you don't lose track of which account is active." The article says it all. I'm just curious about the limit.