This app is the shizzle and has saved me quite a few times. When I'm running out of gas while on the road and my old standby of Costco isn't nearby, this is the app that I consult. Not only does it show nearby gas stations on a map or list, but it also shows the prices, which you can sort by type and from lowest to highest.
Take a look:
(And yes, those are the actual prices of gas in San Francisco!)
For those wondering how the app gets the prices, here's the cool part -- the pricces are GasBuddy community-reported. Of the handful of times that I've used this app, it's been up-to-date. App users have a choice of using the app with or without signing up for an account. One does not need an account to search for gas prices, but one is necessary to enter prices. What do people get for entering gas prices besides the satisfaction of having helped others? They also get entered into a contest to win, appropriately, gas.
The concept and current state of this app is already pretty darn awesome. Here are some things that would be cool to see in the future though:
Business hours of the gas stations
The ability to call the gas station from the app
The ability to sort and filter gas stations chains and names (for those who prefer or loath certain chains)
All in all, this is an overall very helpful money-saving app. I also think that it's very cool that a lot of the gas prices are actually provided by the GasBuddy community. Thanks a bunch to the folks who do that!