Privacy Policy
Last updated: 1 October 2026
1. Who we are and what this policy covers
Lunaire Labs Limited (“we”, “us”) is the data controller: a company registered in England and Wales, company no. 17137604, registered office 818 Whitchurch Lane, Whitchurch, Bristol, England, BS14 0JP (Companies House). Contact: .
This policy covers FuelHound, our Android fuel-price map (app ID com.fuelhound), and visits to fuelhound.lunairelabs.uk. FuelHound was withdrawn from Google Play on 12 August 2026: it can no longer be downloaded or reinstalled, will not be updated again, and the Lifetime unlock can no longer be bought. It keeps working where it is still installed.
The UK GDPR and the Data Protection Act 2018 apply to what we do. For users in the European Economic Area, the EU GDPR applies as well. We have not appointed a representative in the EU: no processing within Article 3(2) EU GDPR takes place, and the little personal data we handle (Section 5) falls within the exemption in Article 27(2)(a).
2. What FuelHound keeps on your phone
Everything below is stored only in FuelHound’s private storage on your phone. It is never sent to us, and we have no way to read it.
- Your settings: country, fuel type, preferred brand, search radius, map style, theme and language.
- Where you last left the map, so it reopens there.
- Favourite places you save — a name you give each one and its position on the map.
- Your free-use count and unlock status.
- Cached price data: a copy of each country’s public price feed, so the map loads quickly. It is public station data and contains nothing about you.
Deleting everything. Settings → Apps → FuelHound → Storage → Clear storage, or uninstall the app. Please note that FuelHound can no longer be downloaded, so once it is uninstalled it cannot be put back.
3. What FuelHound connects to
FuelHound needs the internet to show prices and maps. Every request goes straight from your phone to the services below, and none passes through us. The price, map and search requests carry no account, device identifier or tracking. Each service sees your IP address, as any website does, and the request itself; each has its own privacy policy.
| Service | What for | What it is sent |
|---|---|---|
| Public fuel-price feeds (listed below) | Station prices for the country you choose | UK, Spain, Italy and Portugal: a request for the whole country’s prices, which says nothing about where you are. France, Germany and Austria: a point in the area on screen, and a distance around it |
OpenFreeMap (tiles.openfreemap.org) | Drawing the map | The map tiles for the area on screen |
OpenStreetMap Overpass API (overpass-api.de) | Showing stations that are not in a price feed (without prices) | A box around the area on screen |
Photon, by komoot GmbH, Germany (photon.komoot.io) | Place-name search | What you type, and the centre of the map so that nearby matches come first |
| Google Play Billing | Checking whether you own the Lifetime unlock | Handled by Google’s own code, under Google’s privacy policy |
The fuel-price feeds are published by governments and official transparency schemes:
- United Kingdom: the Department for Energy Security and Net Zero’s Fuel Finder service (
www.fuel-finder.service.gov.uk). - France:
data.economie.gouv.fr(the prix-carburants dataset). - Germany: the Bundeskartellamt’s Markttransparenzstelle für Kraftstoffe (MTS-K), through the Tankerkönig service (
creativecommons.tankerkoenig.de). - Spain: the Ministry for the Ecological Transition (MITECO),
sedeaplicaciones.minetur.gob.es. - Italy: the Ministry of Enterprises and Made in Italy (MIMIT),
mimit.gov.it. - Portugal: the Direção-Geral de Energia e Geologia (DGEG),
precoscombustiveis.dgeg.gov.pt. - Austria: E-Control,
api.e-control.at.
Links you tap — our website, this policy, a data source, the Play listing, a navigation app for directions, or the email link to us — open in the app you have for them. FuelHound itself sends nothing when you do.
The retired UK copy. Before version 0.5.53 (August 2026), FuelHound downloaded UK prices from a copy of the feed kept on our own server. Version 0.5.53 fetches them from the government directly, and our copy was switched off on 2 September 2026. The server never logged who fetched it. Versions older than 0.5.53 can no longer load UK prices.
FuelHound contains no analytics, crash reporting, advertising, social-media or tracking code of any kind.
Accuracy of the fuel price data — do not rely on it
The feeds above are published by governments, transparency schemes and fuel retailers, not by us. FuelHound shows what they publish; we do not set, check or correct any price, and we cannot control how often a retailer updates it. A price may be stale, missing or wrong, and a station may have changed its price, run out of a fuel or closed since the feed was published. Do not make a journey, a detour or any other decision because of a price in FuelHound, and always check the price on the forecourt or pump before you refuel. FuelHound is not an offer or a quotation, and no retailer is bound by anything it shows. To the fullest extent the law allows, we are not liable for any loss, wasted or extra journey, fuel or time arising from a price that is inaccurate, out of date or different from the price charged. The binding terms are in the EULA; none of this affects your statutory rights.
4. Your location
Location permission is optional. If you allow it, FuelHound uses it on your phone to centre the map on you and to sort stations by distance. Your coordinates are never sent to us or to any analytics or tracking service.
As with any map app, to draw the map and find stations, FuelHound has to ask the services in Section 3 about the area on screen, and when the map is centred on you, that area is where you are. Those requests carry no account, identifier or tracking, and we receive none of them.
Without the permission, FuelHound still works: pan the map, choose a country in Settings, or search for a place.
5. What we hold about you
FuelHound sends us nothing and our website records nothing. We receive information in only two ways, and neither can be connected to how you use the app.
(a) If you email us
If you write to , we have your email address, whatever name your mail program sends with it, and your message. We use it only to reply to you, and we delete the conversation once your question has been answered — at the latest 30 days after our last reply, or sooner if you ask. We have no mailing list.
- Where it is held: our mailbox is provided by Nutty About Hosting Ltd, on 20i Ltd’s mail platform, on servers in the United Kingdom. We read it in their webmail, and it is not copied or forwarded anywhere else.
- Legal basis: Article 6(1)(b) where your message is about your purchase; otherwise Article 6(1)(f), our legitimate interest in replying to you.
(b) Sales records
If you bought the Lifetime unlock, Google Play gave us a record of the sale: an order number, the date, the product, the price, tax and currency, and the country. It contains no name, email address, street address or card details. Google’s reports also include the buyer’s city, region, postal code and device for some countries; we remove those as the report is downloaded, so we never keep them.
- Where it is held: by us, in the United Kingdom.
- Legal basis: Article 6(1)(c) — our legal obligation to keep accounting records, for six years from the end of the financial year they relate to (Companies Act 2006 and HMRC). Then they are deleted.
We keep no copies of store reviews on our servers.
6. Permissions
| Permission | What it is for | Anything sent to us? |
|---|---|---|
| Internet and network state | Fetching prices and maps from the services in Section 3, and checking there is a connection first | No |
| Location (precise and approximate) | Centring the map on you and sorting stations by distance — optional | No (see Section 4) |
| Google Play Billing | Checking your Lifetime unlock | No |
7. Your phone’s own backup
FuelHound opts out of Android’s automatic backup and device-to-device transfer, so nothing it stores is copied to Google’s servers or carried to a new phone. Versions before 0.5.47 did not opt out, so a Google Account backup made from an older version may still hold its settings; that backup belongs to you and you can delete it in your Google account. We have no access to it.
Your Lifetime unlock is not stored in that way: it belongs to your Google account, and FuelHound checks it with Google Play (“Restore purchase”).
8. Our website
fuelhound.lunairelabs.uk now carries only FuelHound’s legal documents and a short notice that it is no longer sold. It has no accounts, forms or payments, and uses no cookies, analytics or advertising of any kind.
We keep no record of your visit. Our web server (nginx) is set to access_log off for the site, so no IP address, page, time, referring page or browser is ever written down. Error logging is limited to critical server events, which carry no visitor details. Your IP address passes through the server’s memory while a connection is open, but it is not stored or used. Because no personal data is processed during a visit, no Article 6 legal basis is needed.
Fonts and images are served from our own domain, so viewing a page contacts no third party. The website runs on a virtual private server provided by Hostinger International Ltd in Manchester, United Kingdom. Hostinger receives no visitor data from us; its own network protection, such as firewalls, is covered by its privacy policy.
9. Children
FuelHound is not directed at children. To use it you must meet Google Play’s minimum age for your country — 13 in the United Kingdom (s.9 Data Protection Act 2018) — or any higher age your local law sets (up to 16 in some EEA countries). The app collects no personal data for us, so it carries out no age check. If you believe a child has sent us personal data, email .
10. Your rights
You have the right to access, correct and erase your personal data, to restrict or object to its use, to receive it in a portable form, and not to be subject to decisions made solely by automated means (we make none). In practice, these rights apply only to what Section 5 describes: your emails, which we delete once answered, or sooner on request; and the sales record, which we must keep for six years as an accounting record, which limits erasure of it (your other rights still apply). What FuelHound stores never reaches us, so you control it directly on your phone (Section 2).
Legal basis for each thing we hold is given in Section 5.
To make a request, email with “Data request” in the subject. We will reply within one month, as Article 12(3) requires.
11. Where your data is held
Nothing we hold leaves the United Kingdom. Our website server (Hostinger, Manchester), our mailbox (20i, UK) and Google’s sales records, once we have downloaded them, are all in the UK. The services in Section 3 are run by their own operators, mostly in the UK and the EEA, and receive nothing from us. What FuelHound stores stays on your phone, wherever you are.
12. Security and breaches
What FuelHound stores is protected by your phone’s own security, such as its screen lock and encryption. Please keep your phone’s software up to date. We run no server holding app data. If an incident ever affects what we do hold (Section 5), we will assess it promptly and, where the law requires, tell you and the Information Commissioner’s Office (ICO).
13. Complaints
If you have a complaint, please email us first at and we will aim to resolve it. You also have the right to complain to the ICO:
- Website: ico.org.uk
- Phone: 0303 123 1113
- Post: Information Commissioner’s Office, Wycliffe House, Water Lane, Wilmslow, Cheshire, SK9 5AF
In the EEA you can also complain to the supervisory authority where you live, where you work, or where an alleged breach happened (Article 77 EU GDPR). The European Data Protection Board lists them at edpb.europa.eu.
14. Changes and contact
We may update this policy. The current version is always at fuelhound.lunairelabs.uk/privacy, with the date of the last change at the top. We hold no contact details for FuelHound users, and the app will not be updated again, so we cannot tell you directly — please check this page from time to time.
Questions about this policy: .