Privacy policy

Effective date: 10 November 2026

FuelSplitter (“the app”) helps people split the cost of fuel on car journeys. This policy explains what information we collect, why, and the choices you have. It applies to the app and to fuelsplitter.com.

Who we are

The app is run by FuelSplitter, the data controller under UK data protection law. Contact us at info@fuelsplitter.com.

What we collect

Account details: your name, email address and password. Your password is stored in a protected (hashed) form, so we cannot read it.
Your role: whether you use the app as a driver or a passenger.
Journey details: start points, stops and destinations, the route and distance, fuel price and MPG used, tolls and parking, who is on a journey and each person’s share of the cost.
Vehicles and saved places: any cars and named places (such as “Home” or “Work”) you choose to save.
Location: if you allow it, your device’s location is used to find petrol stations near you. You can instead type an address or postcode.
Invite codes: codes you create or enter to join a journey, and failed code attempts (to prevent guessing).
Advertising data: see “Ads” below.

How we use it

To create and run your account and keep your journeys and saved items.
To plan routes, calculate costs and show each rider their share.
To show nearby fuel prices.
To send emails you need, such as sign-up and password reset codes.
To keep the app secure and prevent misuse.
To show ads that help pay for running the app.

Our legal bases are performing our contract with you (running your account and journeys), our legitimate interests (security, running and improving the app) and, where required, your consent (for example, location and personalised ads).

Who sees your information

Other riders on a journey can see the journey details and the names and shares of the people on it. We do not sell your personal information. We use these providers to run the app:

Supabase: hosts our database and sign-in. Data is stored in Ireland (EU).
Mapbox: maps, place search and route calculation. Addresses and places you search for are sent to Mapbox through our server.
Resend: sends our emails (sign-up and password reset codes).
Fuel price data: nearby fuel prices come from the UK government’s fuel price service and are stored by us. Your personal details are not sent to it.
Advertising provider: the third-party ad service we use to show ads, see below.

Some providers may process data outside the UK. Where they do, they must use approved safeguards.

The app shows ads. Our advertising provider may use your device’s advertising identifier and other device information to show ads. We do not send your name, email address, journeys or other account data to the ad provider. Where the law requires it, we ask for your consent before showing personalised ads, and on iPhone we ask permission to track you across other apps and sites. You can change your choice at any time in the app’s Account tab (“Ad choices”) and in your device settings. If you are under 18, you will only see non-personalised ads.

How long we keep it

We keep your information while your account is open. When you delete your account, your account and its data are deleted. Backups and logs are cleared on a regular schedule. Failed invite-code attempts are kept only briefly.

Your rights

You can ask to see, correct, export or delete your information, object to or restrict how we use it, and withdraw consent at any time. You can delete your account yourself in the app (Account tab). You can also email info@fuelsplitter.com. If you are unhappy with how we handle your data, you can complain to the Information Commissioner’s Office at ico.org.uk.

Age

The app is for people aged 17 or over.

Security

Your data is sent over encrypted connections and protected with access rules so you can only see your own information and journeys you are part of. No system is perfectly secure, so please use a strong, unique password.

Changes

If we change this policy, we will update the date above and, for significant changes, tell you in the app or by email.