Instagram hasn't hurt Vine's user growth much, if the latest numbers from the 6-second video sharing app are any indication.
Vine revealed in a tweet Tuesday that it now has more than 40 million registered users, up from 13 million users in early June -- about six weeks before Instagram launched its own video sharing feature.
We've said this before and we'll say it again: this community - now more than 40 million of you - is amazing. Thank you for inspiring us.— Vine (@vineapp) August 20, 2013
While that may sound like impressive user growth, especially when faced with a viable competitor like Instagram, it's important to note that Vine chose to reveal registered users rather than active users. The latter would give a better indication of how many people are using the app on a daily or monthly basis.
By comparison, Instagram had 130 million active users as of late July when it introduced video, and likely has more than that by now.