Want to be alerted the second your nearest Krispy Kreme turns on its "Hot Now" light? There's an app for that.

Barkley, a Kansas City-based marketing firm, developed an app that tracks when a participating Krispy Kreme shop has its hot light on, signaling that fresh doughnuts rolling off the glazing rack.
The app, which is available for iPhones and Android phones, allows users to search for nearby "Hot Now" lights and program how frequently they'd like to receive notifications. The app is also available as a desktop widget.
"Genuine engagement that is useful to our guests is key to our social media strategy," said Dwayne Chambers, chief marketing officer for Winston-Salem based Krispy Kreme, in a statement. "This unique Hot Light app is one more way we can share the one-of-a kind Krispy Kreme experience with our fans."
The app is available as a free download at KrispyKreme.com/hotlightapp, the Android Market and the iTunes store.