Full Proof

Never guess how much gas you have left again.
Full Proof is a fuel mileage tracker built for drivers with a broken, unreliable, or missing fuel gauge.

It uses your real fill-ups, odometer readings, GPS trips, and MPG history to estimate how many miles you can safely drive before empty.

No account. No internet. No cloud. Just a clear miles-left number you can trust.

Built because my fuel gauge broke and every other app missed the point.

My pain is your gain.

-----------------------------------------------------------------

What Makes Full Proof Different

Miles Left, Front and Center
Full Proof shows one simple number:

How many miles you can still drive before you need gas.

The display is color-coded so you instantly know where you stand:

🟢 Green: You’re good
🟠 Orange: Start planning
🔴 Red: Refuel soon

Works Without a Fuel Gauge
Most fuel apps assume your car already works perfectly. Full Proof does not.

It was built specifically for:
✅ Broken fuel gauges
✅ Unreliable fuel gauges
✅ Motorcycles with no gauge
✅ Older cars and trucks
✅ Drivers who want a backup fuel estimate

Real MPG, Not Guesswork
Full Proof calculates your MPG from your actual driving. You enter your fill-ups and odometer readings, and the app learns your real fuel economy over time.

Not theoretical MPG.
Not crowd-sourced averages.
Not manufacturer estimates.

Your car. Your miles. Your fuel usage.

GPS + Manual Tracking
Full Proof can automatically track trips with GPS and update your mileage as you drive.

Need to add a mechanic test drive, GPS-off trip, or missed mileage? You can enter it manually anytime.

No Internet Required
Full Proof runs locally on your phone.

No login.
No account.
No cloud dependency.
No cell service required.

Your fuel records stay on your device.

Original Features
✅ Real-time miles remaining estimate
✅ Built-in safety margin before empty
✅ No internet required
✅ Real MPG from your odometer readings
✅ Automatic GPS trip tracking
✅ Manual trip and mile entry
✅ Fill-up history with edit and delete
✅ Multi-vehicle support for cars, trucks, and motorcycles
✅ Low fuel warning notifications
✅ Monthly driving summaries
✅ MPG trend charts
✅ Cost-per-mile stats
✅ CSV export

Added Features
✅ Manual database backup and restore
✅ Live MPG display while driving
✅ Service and maintenance log
✅ Color-coded maintenance reminders
✅ Automatic database backup

Who Full Proof Is For
Full Proof is for you if:
✅ Your fuel gauge does not work
✅ Your fuel gauge is unreliable
✅ You ride a motorcycle with no fuel gauge
✅ You drive an older car or truck
✅ You want accurate MPG tracking without bloat
✅ You need mileage records for work or taxes
✅ You want a fuel app that works without cell service
✅ You never want to guess your fuel range again

Full Proof
The fuel gauge for cars without one.

Know your miles left.
Track your real MPG.
Never run out again.