Planning a road trip? Save money on gas or diesel fuel when you fill up along the way with these iPhone Apps, all of which are compatible with iPhone, iPod touch, and iPad. If your trip is more than for one day, see my picks for iPhone and iPad Apps for traveling on a budget.
iGasUp
The iGasUp iPhone app pulls frequently-updated and date stamped gas prices from the Oil Price Information Service (OPIS). Launch the iGasUp app to map and sort gas stations by the 10 cheapest or 10 closest stations for regular unleaded, premium or diesel fuel anywhere in the United States.
iGasUp gives you directions to gas stations listed using Google Maps and if you like to plan your pit stops, you need only enter the zip code for the destination to find the 10 cheapest gas options in that area.
iGasUp gives you directions to gas stations listed using Google Maps and if you like to plan your pit stops, you need only enter the zip code for the destination to find the 10 cheapest gas options in that area.
- $2.99
- iPhone OS 2.2.1 or later
Gasbook
The Gasbook iPhone app finds the best gas and diesel prices (U.S. only), and it includes a fuel log so you can keep statistics on your vehicle's fuel efficiency, total cost of gas, average daily cost of gas used and more. The fuel log can be exported to CSV so data can be analyzed with spreadsheet software.
The gas price database in Gasbook is updated by app users, and gas prices are verified and updated instantly. Gasbook finds gas prices within 50 miles, or can search further using Google Maps, and you can call the gas station directly from the Gasbook app.
The gas price database in Gasbook is updated by app users, and gas prices are verified and updated instantly. Gasbook finds gas prices within 50 miles, or can search further using Google Maps, and you can call the gas station directly from the Gasbook app.
- .99 cents
- iPhone OS 3.0 or later
GasBuddy
The GasBuddy iPhone app finds the cheapest gas in the U.S. and Canada, either by ZIP Code or GPS Auto Locate, and includes gas station services information like ATM, car wash or food mart. This app also uses Google Maps to guide you.
If you find yourself running low on gas, GasBuddy's On Fumes mode finds the closest gas stations regardless of price. If you find yourself stranded on the side of the road, the Assistance mode get you connected to road side assistance.
GasBuddy is updated by members of GasBuddy.com, and fuel prices are based on regular unleaded gas and number 2 diesel fuel.
If you find yourself running low on gas, GasBuddy's On Fumes mode finds the closest gas stations regardless of price. If you find yourself stranded on the side of the road, the Assistance mode get you connected to road side assistance.
GasBuddy is updated by members of GasBuddy.com, and fuel prices are based on regular unleaded gas and number 2 diesel fuel.
- $2.99
- iPhone OS 3.0 or later.




