Drivers tap once and fuel at the cheapest effective price nearby or on-route. Every saved dollar is verified against your own fuel-card statement, nothing self-reported, nothing estimated.
Fuel-card programs and cash-back apps ask you to change how your fleet pays. TopOff doesn't touch payment at all, it decides where the fleet fuels, then uses the card statement you already get as the proof. Zero switching cost, zero new vendor risk in the money path. And the commercial model follows the same logic: TopOff isn't spend, it's found money, from a vendor that is only paid a share of savings after they're verified on your own statement.
Cheapest effective price nearby or along the route, pump minus card discount, minus detour cost. One tap logs the stop and opens directions. Works offline at remote sites.
Every logged stop is matched to its fuel-card transaction. Savings post only when the card confirms station, gallons, and price, nothing self-reported ever counts.
A monthly savings report you can forward as-is: verified dollars vs baseline, per truck and per driver, methodology printed on it.
Diesel-first pricing, route-aware recommendations, and price freshness you can see, in an app a driver actually keeps using.


Most savings tools ask you to trust their math. TopOff's number survives finance review because of what it refuses to count.
One region, one month, one number at the end: verified dollars saved per truck. If it isn't compelling, you've spent thirty minutes finding out. Want evidence before even that? Send a historical fuel-card export and we'll return a backward-looking savings analysis built entirely from your own data. A free cost finding, before anything is installed.