Best Fuel Tracking App/Gas Mileage Tracker for iPhone and Android
If you care about your fuel economy, you already know the frustration: you think your MPG dropped last month, but you have no real numbers to back it up. Maybe it’s the new tires. Maybe it’s your commute. Maybe it’s nothing. Without a record of every fill-up, you’re just guessing, and guessing is how small efficiency problems quietly cost you hundreds of dollars a year.
That’s where a good fuel tracking app earns its keep. The right gas mileage tracker turns every trip to the pump into a data point, and over time those data points tell you exactly how your vehicle is performing, where your money is going, and whether that “fuel-saving” habit you picked up is actually working.
After looking at what’s available on both iPhone and Android, one app stands out for drivers focused on fuel economy: Fuelio. Here’s why it’s our top pick, how it works, and who it’s best for.
What to Look For in a Gas Mileage App
Before we get into Fuelio specifically, it helps to know what separates a genuinely useful fuel tracking app from one you’ll abandon after a week.
A strong gas mileage tracker should calculate your fuel economy automatically, not make you do the math. It should log costs so you can see the real price of driving, not just what you paid at the pump this morning. It should handle more than one vehicle if your household has several. And ideally, it should keep your data safe and portable, so months of careful logging don’t vanish when you switch phones.
The best fuel tracking app is ultimately the one you’ll actually use consistently. Fancy features mean nothing if the app is a chore to open. That balance of capability and simplicity is exactly where Fuelio lands.
Why Fuelio Is Our Top Fuel Tracking App
Fuelio is a fuel log, cost, and mileage tracking app available on both iOS and Android. It launched back in 2011 as a hobby project and later joined Sygic, a company that builds automotive, navigation, and travel apps. That long track record shows in how polished and stable the app feels today.
The core idea is simple. Every time you fill up, you enter the amount of fuel you bought and your current odometer reading. Fuelio uses a full-tank algorithm to work out how much fuel you burned between fill-ups, then calculates your fuel economy for you. Do this a few times and the app starts building a clear picture of your MPG, your spending, and your trends over time.
One thing worth knowing up front: the app needs at least two fill-ups logged before it can begin calculating consumption. That’s not a flaw, it’s just how the math works. Give it a couple of tanks and the statistics start flowing.
The Features That Matter for Fuel Economy
Fuelio does more than log gallons and miles. Here’s what makes it a legitimate tool for anyone serious about reducing fuel costs.
Automatic fuel economy calculation. This is the heart of the app. Enter your fill-ups and Fuelio handles the MPG math, showing you consumption stats as both totals and averages. You get a real, data-backed answer to “how efficient is my car right now?”
Full cost tracking. Fuel is only part of what a vehicle costs. Fuelio lets you record maintenance, insurance, repairs, parking, tolls, car washes, and other expenses, then organizes them into categories so you can see where your money actually goes. The stats page has a way of showing you just how expensive a car really is to run, which is often the motivation people need to start driving more efficiently.
Charts and detailed stats. The app visualizes your data with charts for fuel consumption, monthly costs, gas prices, cost per mile, and more. Trends that would be invisible in a spreadsheet jump right out when you can see them plotted over time.
Gas price and station finder. Fuelio includes crowdsourced gas prices and nearby station info, so you can hunt down cheaper fuel before you fill up. Prices come from users and third-party sources, so they won’t always be perfectly current, but they’re a useful starting point.
Maintenance reminders. Set reminders based on date or odometer reading and the app will nudge you about oil changes and upcoming service. Staying on top of maintenance is one of the most overlooked ways to protect your fuel economy.
Multiple vehicle support. Track a car, a motorcycle, a van, or a whole household of vehicles, each with its own settings and units. It even handles bi-fuel vehicles with two tanks, calculating separate stats for each.
Trip logging with GPS. You can record trips manually or automatically with GPS to see the real cost of a specific route, then save that route if you want it.
Flexible units. Whether you measure in miles and gallons or kilometers and liters, Fuelio supports a huge range of distance and fuel unit combinations. It even handles electric, diesel, LPG, CNG, and ethanol.
Free, Private, and No Account Required
A few things set Fuelio apart from the crowd, and they’re worth calling out.
First, it’s genuinely free with no ads. After Sygic acquired the app, the old Pro features were made available to everyone at no cost. There is still an optional Fuelio Pro subscription (around $29.99 per year) that adds route-planning extras like fuel stations along your route and detailed trip expense reports, but the everyday tracking most drivers need is free.
Second, your data stays on your device. No account, no registration, no sign-up wall. If you want a backup, you can connect the app to Dropbox or Google Drive and it will sync automatically, so a lost or broken phone doesn’t wipe out your logs. For privacy-conscious drivers, this local-first approach is a big draw.
Third, it now supports CarPlay on iPhone, and the interface has been rebuilt to be faster and clearer. You also get light and dark themes to suit your preference.
Is Fuelio Worth It? The Honest Take
No app is perfect, and Fuelio has one real learning curve: setup. When you first download it, you’ll need to enter details about your vehicle and choose your units, then log at least a couple of fill-ups before the good data appears. Some drivers find the manual entry takes a little getting used to, especially if they’re rusty on the details of their own vehicle.
But that manual entry is also the point. The act of logging every fill-up keeps you engaged with your fuel economy in a way that a fully automated app never quite does. And once you’re a few tanks in, the payoff is a genuinely useful record of how your vehicle performs and what it costs to run.
For drivers who want to understand and improve their gas mileage, that trade-off is well worth it.
The Bottom Line
If you’re looking for the best fuel tracking app for iPhone or Android, Fuelio is an easy recommendation. It’s free, it’s private, it works on both platforms, and it does the one thing a gas mileage tracker needs to do well: turn your fill-ups into clear, actionable numbers about your fuel economy and your costs.
Start logging your fill-ups today, and within a few tanks you’ll know exactly how your car is performing, and where you can start saving.
Other Fuel Tracking/Gas Mileage Tracker Apps Worth Considering
Fuelio is our top pick, but it isn’t the only option. Depending on your platform and what you want out of a gas mileage tracker, these apps are all worth a look.
Fuelio: Gas Log & MPG Tracker (Android) — Our featured pick. A full-featured fuel log, cost, and mileage tracker with automatic MPG calculation, cost tracking, charts, and crowdsourced gas prices. Free with no ads.
FillUp – Gas Mileage Log (Android) — A simple, open-source, no-frills gas mileage tracker. Enter your fuel amount and odometer reading and it calculates your MPG, plots averages, and handles multiple vehicles. No cloud sync or bells and whistles, just clean mileage tracking with CSV export. A great choice if you want something lightweight and private.
Fuel Saver (Android) — A GPS-based fuel tracking app that logs trips automatically and analyzes driving patterns like harsh acceleration and inefficient routes. It also estimates your carbon footprint per trip, making it a solid fit if cutting both fuel costs and emissions is your goal.
GasBuddy (iPhone) — Less a mileage tracker and more a gas-price finder, GasBuddy helps you locate the cheapest fuel near you and offers a pay-with-GasBuddy card for per-gallon savings. Pair it with a dedicated tracker for the full picture.
GreenLane: Fuel Smarter (iPhone) — An iOS app focused on smarter, more efficient fueling. A good option for drivers who want to build better habits at the pump.
Upside: Gas, Food & Cash Back (iPhone) — Not a tracker, but a cash-back app that earns you money back on gas, groceries, and dining. Worth stacking alongside a mileage tracker if your main goal is spending less at the pump.
FuelSync Pro — Not a mileage tracker app, but a plug-in fuel-saving device worth considering if you want a simple hardware option to pair with your fuel tracking routine.