Do you have an iPhone or Android app?

Yes! We currently have Gas Tracker for iOS. We are in the process of merging Gas Cubby (for iOS) with Fuelly as well. Further down the road, we'll also be adding online sync capabilities to aCar for Android. We also have Fuelly Mobile, a site optimized for mobile devices. Just browse to m.fuelly.com on your phone and you can add fuel-ups from there. You can also fuel-up via SMS (text message) with your phone.