Fillr: Fuel &
Service Tracker.
Now available on the App Store. A simple iPhone app for logging fuel fill-ups, tracking MPG, recording servicing costs, and staying on top of vehicle renewal reminders.
What is Fillr?
Fillr is an iPhone app from WolfMark Ltd for tracking fuel fill-ups, MPG, running costs, servicing, and renewal reminders. It is local-first and private: no account required, and your vehicle data stays on your device. Fillr is distributed through the Apple App Store for iPhone.
A real app, live today.
Fillr is available on the App Store for iPhone. v1.11 adds regional support for the UK, Ireland, US, Canada and Australia, while keeping UK defaults unchanged.
- Status
- Live on the App Store
- Version
- v1.11
- Last updated
- May 2026
- Platform
- iPhone
- Regions
- UK, Ireland, United States, Canada, Australia
- Pricing
- Free download; optional one-time Fillr Pro upgrade
- Privacy
- Local-first. No account. No WolfMark cloud.
Fillr screenshots
What Fillr does
Keep your vehicle's fuel fill-ups, MPG, running costs, servicing, renewals and reminders in one simple place.
The sections below cover features, regional support, Fillr Pro pricing, and privacy in more detail.
Key features
What you get in Fillr today.
Fuel fill tracking
Record fuel volume, price, total cost and odometer reading. Fast and flexible at the pump.
MPG & fuel economy
Automatic fuel economy tracking with MPG Imperial, MPG US and L/100 km support, so you can see trends over time.
Running cost tracking
Keep an eye on what you're spending per fill-up and across the year, in your regional currency.
Service & maintenance
Log service visits, repairs and routine maintenance with costs and notes against each vehicle.
Service & renewal reminders
Set renewal dates so you're not caught out. Reminders are generated locally on your device, with labels that match your region.
Region-aware units & wording
Currency, distance, fuel volume, price formatting and reminder wording follow the region you choose in Settings.
Regional support
Choose your region in Settings — Fillr adapts the rest.
Fillr ships with regional profiles for the United Kingdom, Ireland, United States, Canada and Australia. Switching region updates currency, distance, fuel volume, fuel price formatting (such as p/L or ¢/gal), fuel economy units (MPG Imperial, MPG US, or L/100 km) and the renewal labels and notification copy used throughout the app.
UK defaults are preserved. If you're in the UK and don't change anything, Fillr behaves exactly as it always has — pounds sterling, miles and MPG Imperial, with MOT, Road tax and Insurance renewal labels unchanged.
Private by design
Local-first. No account. No cloud sync.
Your vehicles, fill-ups, service records and reminders are stored on your device. There's no sign-in, no WolfMark cloud, and no advertising or tracking. If you have iCloud Backup enabled, Apple may include Fillr's data in your device backup — that's controlled entirely by your iOS settings.
Full details are in the Fillr Privacy Policy.
Fillr Pro
One optional upgrade. Yours to keep.
Free download. Optional Pro upgrade.
Fillr is free to download and use. Fillr Pro is an optional one-time in-app purchase for multiple vehicles and current Pro features. Apple shows the exact local price in your App Store region before purchase. No subscription.
- Free: one vehicle, core fuel and service tracking.
- Fillr Pro: multiple vehicles and current Pro features.
- Payment: handled by Apple through the App Store.
Get Fillr on the App Store.
Free to download for iPhone, with optional Fillr Pro available as a one-time in-app purchase.
Coming next
A look at where Fillr is heading.
v1.11 lays the regional foundation for an English-speaking international audience. More regions, more Pro features and further fuel-economy and reminder polish are planned as Fillr evolves.
Support & privacy
Help, contact and full privacy details.
Fillr Privacy
How Fillr handles your data — the short answer: it doesn't leave your device.
Read the privacy policy →More WolfMark apps
Fillr is one of several apps and tools being built under the WolfMark brand.
See all apps →