Ed note: Since this article was published, Instagram also became available on the Android. Click here to read more
With more than 15 million users worldwide, Instagram is one of the most popular apps ever made for the iPhone.
The free photo-sharing app allows users to apply filters to pictures for some extra character.
With more than a dozen filters, borders and selective focusing, users have found new ways to punch up their pics and make their images really pop.
And it's those photos we want to show off.
So the next time you take an Instagram photo you want to share with us, just include the hashtag #SanDiegoGram.
We're putting together the very best and will feature them online.
The app is free to download and available on the iTunes App Store. You can follow our photos on Instagram by searching for user NBCSanDiego.