All of these apps are free, and they all work with bothAndroidandiOS.

Best for Finding Stations on Road Trips: Gas Buddy

Automatically show cheap gas along your route.

Identifies good places to stop based on gas prices.

Three screens from the GasBuddy app.

Payment feature can save you some money too.

Advanced trip planner is only on the website.

Gathers lots of private data.

Three screens from Google Maps showing gas prices.

Gas Buddy is a feature-rich gas app, but its route feature is indispensable when planning a road trip.

You probably already have it.

Excellent for creating routes and navigation.

Three screens from the Upside app showing how to save money on gas.

No advanced sorting features.

Wont show stations out of your area unless you run a new search.

This automatically brings up a map of the closest gas stations along with prices.

Three screens from the Waze app showing a contactless payment prompt.

Best for Cash Back: Upside

Provides money back within days.

Receive funds via PayPal, check, or gift card.

Sometimes has cash back offers for restaurants and groceries.

Three screens from the Geico Mobile app showing accurate gas prices.

Only shows gas prices for participating stations.

You have to pay full price then wait to be reimbursed.

Best for Contactless Payment: Waze

Automatically alerts you when contactless payment is available.

Launches the right app for your location.

Works with multiple gas station chains.

Payment isnt handled in-app.

Requires the installation of additional apps.

It then gives you the option to launch the corresponding gas station app if you have it installed.

Best for Accurate Prices: Geico Mobile

Up to date gas prices from OPIS.

Dont need to have Geico to use it.

Lacks some advanced features.

Geico policyholders will get more utility out of it.

You dont need an account, and you dont need to have Geico insurance.