Taco cravings are serious. But until last week, there was no emoji to express them. Ice cream, donuts, pizza? Sure. But not little digital tacos.

Then Taco Text came on the scene. The free iOS app sends little taco pictures by text, email and Twitter. There's a regular taco, a fish taco, a breakfast taco and a "mystery taco." It also helps you locate places nearby to buy tacos.

Silly, but potentially useful if you're on the hunt for tacos. And aren't we all?

The app comes from XOXCO, a software product design and development studio in Austin, Texas, a city where tacos are acceptable for all meals. (Sidenote: Can somebody please make breakfast tacos a popular thing in the Twin Cities?) Yet even the company's CEO, Ben Brown, seems surprised at users' hunger for the odd little app.

The day the app launched:

And earlier today:

So far, however, the taco love is iOS only. An Android version is in the works.