WINSTON-SALEM, N.C., March 22, 2012 /PRNewswire/ -- Blue Rhino, the leading brand of propane tank exchange for gas grills, outdoor heaters and other propane appliances, has introduced version 2.0 of its iPhone app, Rhino Gauge™. "Everybody hates running out of gas while grilling," said Chris Hartley, vice president of marketing for Blue Rhino. "Blue Rhino's Rhino Gauge app can help prevent that, by allowing you to better keep track of the amount of propane in your tank." Here's how the app works. Just answer a few questions about how you grill and the last time you bought Blue Rhino propane. Based on the information you provide, the app will predict when you should need gas again. It can provide an even better estimate if the user chooses to track every cookout individually. To keep an eye on their estimated tank fill level, users click "Propane Check." When the gauge shows "low," it is time to get more propane. The app, which was designed for use with Blue Rhino tanks, also shows Blue Rhino locations nearby so the user can get back to the grill, quick and easy. There's even a timer built into the app for keeping track of grilling time. Owners of v.1 of Rhino Gauge, which was originally released in 2009, will need to download the new version to replace the old one. Blue Rhino's Rhino Gauge app is free, and available to download from the iTunes store or at http://itunes.apple.com/us/app/rhino-gauge/id504352398?mt=8. For more information, visit www.BlueRhino.com/rhinogauge. About Blue Rhino® In 1994, Blue Rhino – named for the color of a propane flame and the endangered animal – launched America's first branded propane tank exchange service. Today, Blue Rhino is more than propane, with a full line of products at the heart of outdoor living. This includes grills, heaters, fire pits, mosquito traps, charcoal, and more sold under brands such as Endless Summer®, UniFlame®, SkeeterVac®, and Lokkii®. Blue Rhino's leading propane exchange brand is available at more than 45,000 retail stores in 50 states and Puerto Rico and is based in Winston-Salem, N.C. For more information, visit www.BlueRhino.com. Blue Rhino is a registered trademark of Ferrellgas, L.P.