Some apps for finding cheap gas include GasBuddy, Gas Guru and Waze as of 2015. These smartphone apps all help users locate the cheapest gas prices available at nearby gas stations.
GasBuddy is the most popular gas app, basing its price data on user crowdsourcing. App users report cheap gas prices they see, and the app aggregates the information and displays it for others.
Gas Guru takes its prices from the Oil Price Information Service, which is updated frequently. The app offers directions to nearby gas stations and also allows users to share their savings on social media.
Waze is another crowdsourcing app that allows users to report cheap gas prices. The app also offers users special deals on gas at affiliate gas stations.