Fill up now,
or wait?
Fuelcast reads public U.S. fuel price data and the daily wholesale market, then tells you which way pump prices are heading this week — in one word, on one screen.
Prices are climbing — you're on the cheap side of a move.
Measured $3.04 on Mon 4 Aug. Pumps are surveyed weekly, so the figures above are our estimates from there.
One word, then get on with your day.
The whole product is a verdict and a confidence. Everything else — the reasons, the charts, the full method — sits behind a tap, and only if you go looking.
It says nothing, often
When the signal is weak, or the move is under 3¢ a gallon, Fuelcast declines to call it. Refusing to guess the coin-flip weeks is what makes the rest worth believing.
It shows its record
Including the calls it got wrong — scored against the official weekly price survey, never against its own estimate.
It stays quiet
Alerts are rising prices only, high confidence only, at most once every three days, never at night. Falling prices drift down slowly, so there's no moment to catch.
Weekly surveys, daily markets.
Pump prices are surveyed once a week by the U.S. Energy Information Administration. Wholesale gasoline trades every day. Fuelcast anchors on the weekly survey and carries it forward using daily wholesale moves, so the call sharpens as the week goes on instead of sitting still.
The model is fitted on decades of history and tested out-of-sample — never on data it had already seen.
Public data stops at the region. You don't.
Fuel prices are published by region, state, or metro area — never by street corner. So Fuelcast lets you correct it. Tell it what you actually paid, twice, and it learns how far your usual station sits from the published average.
Those prices never leave your phone. The app sends a single number — roughly how much dearer or cheaper your station runs. The forecast direction stays regional, because that's the part wide data does well: prices across a region move together about nine times out of ten.
Free, and staying that way.
No subscription. No advertising. No accounts. No analytics. Nothing sold on about you. Fuelcast costs a couple of dollars a month to run no matter how many people use it — so there's nothing here that has to be paid for later.
What it won't do.
- It won't tell you which station nearby is cheapest. No free, legitimate source of station-by-station prices exists, and we won't build on scraped data.
- It won't guess when it doesn't know. Around half of all weeks get no call at all.
- It won't ask for your location. A ZIP code you type is all it uses.
- It won't nag you. Quiet by default, and it stays that way.
Out now on the App Store.
Free, for iPhone. No account, no ads, nothing to cancel.