Fuel & car service log

Car Service & Fuel Log

Logbay is a simple, private fuel and service log for your car, motorbike and boat. No account, no ads.

Android version coming soon

Free to download. Logbay Pro: 1-week free trial.

Cars, motorbikes & boats
No account. No ads.
Receipts read on your iPhone
Free CSV export, always

What Logbay does

Snap the receipt, done

Take a photo of your fuel receipt and Logbay reads the litres, price per litre and total for you, right on your iPhone. Snap the dashboard to fill in the mileage.

Never miss a service

Reminders for oil changes, servicing, filters, tyres, brakes, MOT, road tax and insurance. Logbay reminds you by miles or by date, whichever comes first, and estimates the date from how much you drive.

Documents to hand

Keep your V5C, insurance, MOT certificate and warranty with photos. Logbay reminds you before anything expires.

Know what your car really costs

Accurate mpg (UK gallons) with the full-tank method, or L/100 km
Partial fill-ups and missed entries handled correctly
Cost per mile, monthly spending and every expense: parking, tolls, car washes, fines
A clean service history PDF, ideal when you sell

Motorbikes and boats too

Chain care for motorbikes, engine hours for every boat engine: impellers, anodes, lower unit oil, winterising and antifouling, each with its own reminders.

What's that warning light?

Snap a dashboard light to see what it means, how urgent it is and what to do.

Your data is yours

No account, no sign-up, no ads
Everything stays on your iPhone, with automatic daily backups in the Files app
Optional iCloud sync through your own private iCloud
Export to CSV any time, always free
Coming from another app? Import your data from CSV

Warning lights

A light came on and you're not sure what it means? Look it up: 38 dashboard warning lights, how urgent each one is and what to do.

See all warning lights →

Logbay Pro

Unlimited vehicles and reminders, unlimited receipt scans, CSV import, iCloud sync and detailed reports. 1-week free trial, then a yearly subscription.

Android version coming soon

Free tools

mpg to L/100 km converter

Convert fuel economy between mpg (UK), MPG (US), L/100 km and km/L instantly, with a conversion table and the formula.

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Fuel cost calculator

Work out what a journey costs in fuel: enter the distance, your car's mpg and the price per litre.

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Start your logbook today

Free to download. Logbay Pro: 1-week free trial.

Android version coming soon