Fetch public prices
About once a day, Fuel Forecast fetches daily closes of RBOB gasoline futures — the U.S. wholesale benchmark — and EIA's weekly U.S. average pump price.
Fill up now, or wait a few days?
Know which way gas prices are headed before you fill up.
Pump prices follow wholesale gasoline with a lag of a week or two. Fuel Forecast watches public wholesale price data every day and answers one question at a glance: are prices likely to rise, fall, or hold steady over the next 3–7 days?
Built for iPhone · Free · No account, ads, or tracking
Example forecast · U.S. average
Likely to fall
High confidence · No rush — waiting a few days may save a little.
Wholesale futures$3.12/gal
5-day move−12.9¢
U.S. avg pump price$4.08/gal
Expected move−11.5¢
One glance answers it
Public data, explained math
No account or server
A daily forecast, on-device
From wholesale markets to a simple answer.
Everything happens on your iPhone. The app fetches two public price series, runs a small model, and shows the result.
Compare pump to wholesale
Stations price off replacement cost, so the pump follows wholesale with a lag. The model measures recent wholesale momentum and how far today's pump price sits from the level wholesale implies.
Show the call
A single indicator — rising, steady, or falling — with a confidence level, the numbers behind it, a chart of recent prices, and links to the live sources.
Simple, honest math
Two signals. One expected move.
Fuel Forecast is deliberately transparent: every forecast shows the exact numbers that produced it, in plain language.
- Momentum: how much wholesale gasoline moved over the last five trading days.
- Pressure at the pump: today's pump price versus the level implied by wholesale plus the typical eight-week markup.
- Expected move: the two signals blended into a cents-per-gallon estimate for the next several days.
- Confidence: high when the move is large, the data is fresh, and the signals agree — lower when they conflict.
- Track record: replayed over 21 years of history (2005–2026), the model's rising days saw pump prices up a week later 80% of the time, versus 48% of all days. Details on the support page.
- Optional alert: a notification when the forecast turns to rising, so you can fill up before the pump catches up.
Private by design
No account. No server. Nothing collected.
Fuel Forecast has no app account, advertising, analytics, tracking, location access, or Good Little Apps data server.
Two public requests
The app's only network activity is fetching two public price series — the same pages anyone can open in a browser. No personal data is sent.
On-device forecasts
The model runs on your iPhone. The latest prices and forecast are cached locally so the app works offline.
Local alerts
Price-rise notifications are generated on your device. There is no push server and nothing to subscribe to.
Nothing to delete
No account to close, nothing stored anywhere but your phone. Removing the app removes its data.
Simple question, no price
Free, with everything included.
The forecast, the chart, the explanations, and the alerts. No purchase, subscription, or account.
Free and unlimited
$0Daily forecasts, confidence levels, price charts, source links, and optional price-rise alerts.
Fuel Forecast is an informational aid based on national U.S. price data and a simple statistical model. It is not financial advice, and forecasts can be wrong — refinery outages, storms, and supply news can move prices faster than any wholesale signal. Your local station's price also depends on local taxes and competition.