Whether the queer stencilings of Jeremy Novy or Upper Playground’s giant walrus lasering the GGB, wow — San Francisco has some amazing street art that you know absolutely nothing about!

If only you could point your iPhone at a wall and find out more about that piece of art. 

Well now you can, thanks to 1AM Mobile.

Just dropped by SoMa’s venerable 1AM Gallery — as in First Amendment Gallery, if you’re not into the whole brevity thing — 1AM Mobile is a user-curated app that helps you become a street-art connoisseur in a few taps and swipes. 

See a mural you like? Open the app and get details, maybe even turn-by-turn directions to other works by the same artist.

If what you see isn't in the app, take a picture and let the community fill in the vitals. 

Best of all, as time makes short work of these ephemeral bits of the landscape, the app keeps a tidy record of what's come and gone, making you something of an art historian.

It’s your city. It’s your art collection. It’s time you were in the know.