TopOff is three things working as one system: a driver app that takes one tap, a verification engine that reconciles every fill against the fuel card, and a report that turns it into a number finance will accept.
The app ranks stations by effective price: pump price, minus your fleet-card discount at that brand, minus what the detour actually costs in time and fuel. The cheapest sign isn't always the cheapest stop, the ranking knows the difference.



Separate diesel prices and diesel baselines. A Regular/Diesel toggle, not a car app squinting at trucks.
Every price shows its age ("updated 3h ago"). Stale data gets dropped, not guessed at.
Remote job site, no bars? The tap queues on the phone and syncs when coverage returns.
The driver's tap creates a pending record, station, fuel grade, timestamp, and a snapshot of the local market average at that exact moment. Then the engine waits for evidence.
Intent logged with the baseline snapshot. No gallons asked, nothing self-reported exists in the system.
The fuel-card transaction arrives and is matched, driver, station, day, grade. The card supplies the real gallons and the real price.
Saving = (baseline snapshot − card price) × card gallons, floored at zero. Unmatched taps expire. Reversals revoke.
Once a month: verified dollars saved vs baseline, per truck and per driver, adoption rate, and projections, with the methodology printed at the bottom. Built to be forwarded, not exported and explained.
A bounded pilot produces your fleet's real number in about a month, free, no integration, no card switch.
Start a free pilot