Fuelio vs WrenchTime: Which Fuel and Car Log App Fits You?

Fuelio vs WrenchTime in three points

I build WrenchTime, so read this comparison knowing that. I did not test, rate or score Fuelio: every claim about it on this page comes from its App Store listing and version history, its Google Play listing or its website, checked on 19 October 2026. Every claim about WrenchTime comes from its own feature documentation.

Fuelio is a product of Sygic a. s. Fuelio is a trademark of its owner. This comparison is independent: WrenchTime is not affiliated with, sponsored by or endorsed by Sygic.

• Fuelio is a fuel log first: fill-ups, fuel economy and crowdsourced fuel prices, free on Android and iPhone, with expenses, reminders and receipt scanning in Fuelio Pro on iPhone.
• WrenchTime is a vehicle log first: fuel and charging sit next to a maintenance schedule, automatic trips, CarPlay, OBD-II live data and an Apple Watch app, on iPhone, iPad and Apple Watch only.
• The phone decides a lot: a household with Android phones can only use Fuelio on every phone, while an iPhone-only driver who wants the service history in the same place gets more from WrenchTime.

What is the Fuelio app?

The Fuelio app is a fuel and car cost tracker published by Sygic a. s., the company behind the Sygic navigation apps. According to fuel.io, Fuelio was founded in 2011, joined Sygic in 2015 and is still developed by the same team. On iPhone it is listed as "Fuelio: MPG & Mileage Tracker", with the subtitle "Gas Prices & Car Costs"; on Android as "Fuelio: gas log & gas prices".

On the US App Store on 19 October 2026, Fuelio was at version 2.9.1, required iOS 17.6 or later, was also offered for Macs with an Apple M1 chip or later as an iPhone app not verified for macOS, was available in English and 52 more languages, and was rated 4.5 from 166 ratings. On the US Google Play store it showed more than five million downloads, an Editors' Choice badge and a 4.2 rating from 136K reviews.

Fuelio works by the full-tank method: at each fill-up you enter the fuel bought and the odometer reading, and it calculates consumption between full tanks, with charts and statistics for one car or a small fleet. The iPhone listing adds nearby stations and fuel prices on CarPlay, a Home Screen widget, Seller's and Custom reports, CSV import and export, and support for petrol, diesel, electric, LPG, CNG, ethanol and bi-fuel vehicles.

Since version 2.8.3 of 15 September 2026, Fuelio for iPhone also has a Trip Log: trips recorded automatically or added by hand, routes on a map, distance, time, speed and weekly summaries, categories and notes, working with CarPlay, Live Activities and iCloud backup, according to its version history. The Android listing describes a GPS trip log with export to GPX files.

Is Fuelio free?

Fuelio is free to download on both stores, and its iPhone listing says it has no ads and needs no account. The fuel log itself is free. On the US App Store on 19 October 2026, the in-app purchases were listed as Fuelio Pro 1-Month at $4.99 and Fuelio Pro 1-Year at $17.99. Prices vary by country and change over time, so check the purchase screen in the app before subscribing.

On iPhone, the App Store description says Fuelio Premium adds expense tracking for maintenance, insurance, repairs, parking, tolls and car washes, maintenance reminders, receipt scanning from the camera that runs on the device even offline, weather logging on fill-ups, and Annual Summary, Fuel Efficiency and Maintenance reports. Google Play shows that the Android app also offers in-app purchases.

What is WrenchTime?

WrenchTime is an iOS app for vehicle maintenance, fuel and EV charging logs, trips and costs, for cars and motorcycles across 11 engine types. It runs on iPhone with iOS 26 or later, on iPad, and on Apple Watch with WrenchTime Pro. It has no account and no ads: data is stored on the device and synced through the owner's private iCloud.

WrenchTime is built in SwiftUI for iOS 26 and uses Liquid Glass, the Dynamic Island and symbol effects natively rather than imitating them. A recording trip shows as a Live Activity on the Lock Screen and in the Dynamic Island, 9 widgets, some with WrenchTime Pro, sit on the Home Screen and Lock Screen, and the same garage reaches CarPlay and an Apple Watch app with complications, both with WrenchTime Pro.

The dark theme is calibrated for OLED rather than inverted from the light one, and 30 accent themes, part of WrenchTime Pro, recolour the whole app. On iPad it keeps a permanent sidebar. There are no ads on either tier and no account: data stays on the device and in your private iCloud.

• Fuel and charging: a fuel log with full-tank tracking, a missed fill-up flag, fuel grade, efficiency drop alerts and a fuel level estimate, a separate EV charging log with kWh, charger type and battery percentage, and, with WrenchTime Pro, an on-device scanner that reads the pump display or the receipt for you.
• Care: 59 maintenance procedures in 9 categories, scheduled by date, by distance or both, with reminders and recurring series.
• Trips: recorded on their own when the phone connects to the car's Bluetooth stereo, detects driving or leaves the parking spot, with a GPS route, and added to the odometer.
• OBD-II: OBD-II is the diagnostic port under a car's dashboard. With a Bluetooth LE ELM327 adapter or an OBDLink MX+, WrenchTime shows live engine data and records it with each trip; trouble codes are part of WrenchTime Pro.
• Pricing: free with limits, including 1 vehicle and 3 fill-ups a month; WrenchTime Pro removes them, as a monthly or yearly subscription or a one-time lifetime purchase.

Fuelio vs WrenchTime at a glance

Fuelio and WrenchTime both log fill-ups and fuel economy, both record trips on iPhone, both run on CarPlay and both import and export CSV files. Fuelio runs on Android as well and shows crowdsourced fuel prices. WrenchTime adds a maintenance schedule, OBD-II data, an Apple Watch app and vehicle sharing. In the table, "Not listed" means the app's public sources do not mention the feature, not that the app is confirmed to lack it.

Sources: Fuelio's App Store listing, Google Play listing and fuel.io, checked 19 October 2026; WrenchTime's own documentation.

Fuel log and fuel economy: how each app calculates it

Fuelio and WrenchTime calculate fuel economy the same way, by the full-tank method: the fuel needed to fill the tank again equals the fuel burned since the last full tank, so the distance driven divided by that amount gives the economy for the interval, in miles per gallon or litres per 100 km. In the full-tank method, a partial fill-up is carried over to the next full tank instead of producing a figure of its own. The worked method is in how to calculate fuel economy.

The Fuelio Android listing describes a "full tank algorithm", partial fill-ups, bi-fuel vehicles with two tanks such as petrol and LPG, and distance in kilometres or miles with volume in litres, US gallons or imperial gallons. WrenchTime marks a fill-up as a full tank, lets you flag a missed fill-up so the gap is excluded rather than turned into an impossible number, tracks the fuel grade and warns when economy falls against your own history.

A fill-up can be logged from the camera: point it at the pump display, a charger screen or the receipt and WrenchTime reads the volume or energy, the total cost and the price per unit, with on-device Vision text recognition, a seven-segment decoder for LED pump displays and, on devices that support it, Apple Intelligence.

A plausibility check makes the three values agree, and a confirmation sheet shows what was read before anything is saved. It runs entyrely on the iPhone, so there is no per-scan fee or extra service, and it is part of WrenchTime Pro.

Fuel prices: crowdsourced or official

Fuelio shows nearby stations with crowdsourced fuel prices, meaning prices provided by users and third-party sources, or by official government providers in some countries, according to its App Store listing. On iPhone the same stations and prices are available on CarPlay.

WrenchTime's Price Radar shows pump prices only where a public registry publishes them: Italy, France and Spain from government data, and Germany through Tankerkönig with a free key the user enters once. The United Kingdom is not among them: in the UK, as everywhere else outside those four countries, it lists the stations around you from Apple Maps without prices. For an electric vehicle it finds charging points worldwide from Open Charge Map, without prices. Fuelio's App Store listing describes fuel prices at nearby stations; in the UK, WrenchTime shows no pump prices.

Trips, CarPlay and the rest of the car

Both apps now record trips on iPhone. Fuelio's Trip Log records trips automatically or by hand, shows routes, distance, time and speed, and works with CarPlay and Live Activities. WrenchTime's automatic trip tracking arms when the phone connects to a paired car stereo, detects driving or leaves the parking spot, starts the trip above a speed threshold, assigns it to the right vehicle and adds the distance to the odometer.

On CarPlay, Fuelio's listing describes nearby stations, prices and its Trip Log. WrenchTime on CarPlay is part of WrenchTime Pro and has four tabs: live engine gauges from an OBD-II adapter, the current trip, nearby fuel stations or charging points, and the vehicle's odometer and upcoming maintenance.

WrenchTime also reads the car itself. With a Bluetooth LE ELM327 adapter or an OBDLink MX+, it shows OBD-II live data on iPhone for free and keeps the readings with each trip, and WrenchTime Pro reads and clears trouble codes. It has an Apple Watch app and lets you share a vehicle's log with family over iCloud, both with Pro. Fuelio's public sources do not list OBD-II, an Apple Watch app or shared vehicles.

Which should you choose?

For most iPhone owners WrenchTime is the stronger pick: fuel, charging, maintenance and trips sit in one log, fill-ups can be scanned from the pump display with WrenchTime Pro, the engine can be read over OBD-II, and the app is built natively for iOS 26, from the Lock Screen to CarPlay and Apple Watch. Fuelio is the better fit for the needs below, and some drivers keep both: Fuelio for prices at the pump, WrenchTime for the service and trip history.

Fuelio's public sources, checked 26 October 2026, list no OBD-II support; WrenchTime reads live engine data for free with a Bluetooth LE ELM327 adapter or an OBDLink MX+ and keeps it with each trip.

• Choose WrenchTime if everyone is on iPhone, you want maintenance scheduled by date and distance next to the fuel log, trips that record themselves from the car's Bluetooth, live engine data from an OBD-II adapter, or an app built for iOS 26 with Live Activities, widgets (some with Pro) and Liquid Glass.
• Choose Fuelio if someone in the household uses Android, you want crowdsourced fuel prices on the map where Fuelio has them, or you only need a fuel log and want it without a subscription.
• Choose WrenchTime Pro if you drive more than 1 vehicle or log more than 3 fill-ups a month, or you want fill-ups scanned from the pump display or the receipt, CarPlay, the Apple Watch app or a vehicle shared with family.

How to move from Fuelio to WrenchTime

Fuelio exports its log as a CSV file on both iPhone and Android. WrenchTime recognises Fuelio's export by its own column headers, brings in one vehicle per file, and moves fill-ups, charging sessions, services and other costs, and odometer readings with the units the file records. Nothing is saved before you check a preview, entries you already have are flagged as duplicates, and every import carries a tag so it can be removed in one step.

GPS trips do not come across, because a CSV row has no route. Import is part of WrenchTime Pro and deletes nothing in Fuelio. The steps are in the guide to import a Fuelio CSV into WrenchTime. Coming from Spritmonitor instead, the Spritmonitor vs WrenchTime comparison covers what changes.

Key takeaways

What to remember about Fuelio and WrenchTime, checked on 19 October 2026.

• The pick for most iPhone owners: WrenchTime, for fuel, charging, maintenance and trips in one log, OBD-II live data and a native iOS 26 design; Fuelio for a household with Android phones, crowdsourced fuel prices, or a fuel log without a subscription.
• OBD-II live data: Fuelio's public sources, checked 26 October 2026, list no OBD-II support; WrenchTime reads live engine data for free and keeps it with each trip.
• Fuelio: a fuel log and car cost app by Sygic for Android and iPhone, rated 4.5 from 166 ratings on the US App Store and 4.2 from 136K reviews on the US Google Play store on 19 October 2026.
• Fuelio pricing: the fuel log is free with no ads; Fuelio Pro was listed at $4.99 a month or $17.99 a year on the US App Store on 19 October 2026.
• Same method: both apps calculate fuel economy tank to tank, from full fill-ups and odometer readings.
• Fuel prices: Fuelio shows crowdsourced prices; WrenchTime shows official prices in Italy, France, Spain and Germany and stations without prices elsewhere, including the UK.
• Beyond fuel: WrenchTime adds 59 maintenance procedures, OBD-II live data, an Apple Watch app and vehicle sharing, on iPhone, iPad and Apple Watch only.

Try WrenchTime alongside your Fuelio log

If you already keep a Fuelio log on iPhone, you can try WrenchTime's free tier on 1 vehicle with 3 fill-ups and 2 care entries a month, and see whether a maintenance schedule and self-recording trips are worth having next to the fuel log. With WrenchTime Pro, the whole Fuelio history comes across from its CSV export. How the fuel log works is on the fuel economy tracker page.