Privacy Policy

Last updated: 2 September 2026

      The short version: FuelHound has no accounts, no analytics, no advertising, and no crash reporting. Your GPS coordinates are processed on your device and are never sent to Lunaire Labs. Like any map app, FuelHound must tell the map and search services which area you are looking at — tile, station-location and place-search requests necessarily reveal the map area in view (see Sections 3 and 6) — but no account, identifier, or tracking is attached to any of them. The only server of ours your device contacts is a cached copy of the UK government's public Fuel Finder feed, which contains no information about you. Our website and that feed endpoint do not retain access logs — we don't record your IP, the requests you make, or any other visit data. Everything else is stored locally on your phone.
    

Important — fuel prices are not guaranteed. Do not travel to a station because of a price shown in FuelHound. The prices in the App come from third-party open-data feeds and are reported by the retailers themselves. They can be out of date, incomplete, or simply wrong, and a station can change its price, run out of a fuel, or close at any time without notice. Never make a journey, a detour, or any other decision on the strength of a price displayed in FuelHound, and always check the price on the forecourt before you refuel. FuelHound is an informational convenience tool only and must not be relied upon. We are not responsible for wasted or extra journeys, for fuel or time spent travelling to a station, or for any difference between a price shown in the App and the price actually charged. This notice is repeated here because app stores link to the privacy policy first; the binding terms are in EULA Sections 3, 4 and 5, and nothing in any of our documents affects your statutory rights.

1. Who this policy applies to

This Privacy Policy applies to FuelHound, an Android application published by Lunaire Labs Limited ("Lunaire Labs", "we", "us"). It also applies to this website, fuelhound.lunairelabs.uk.

Licence terms — please read them. FuelHound is licensed, not sold. Your download, installation, and use of the App is governed by the FuelHound End-User Licence Agreement at fuelhound.lunairelabs.uk/eula, and by installing or using the App you agree to that EULA — including, in particular, its provisions on fuel price data (EULA Section 3): prices are not guaranteed, you should not travel to a station on the strength of one, and you must always check the price on the forecourt before refuelling. Note also its provisions on backups and data loss (EULA Section 5): your preferences and saved places stay only on your device, the App opts out of Android's automatic backup, and we hold no copy and can never recover them. This Privacy Policy and the EULA should be read together.

Although Lunaire Labs is established in the United Kingdom and the UK GDPR is the primary regulatory framework for our processing, FuelHound is offered to users across the European Economic Area (the app currently supports France, Germany, Spain, Italy, Portugal and Austria in addition to the United Kingdom). Where you are located in the EEA, the EU General Data Protection Regulation (Regulation (EU) 2016/679, "EU GDPR") also applies in parallel to the limited processing described in this policy.

2. Data Controller

For the purposes of the UK General Data Protection Regulation (UK GDPR), the EU General Data Protection Regulation (EU GDPR, where applicable to EEA users) and the Data Protection Act 2018, the data controller is Lunaire Labs Limited, a company registered in England and Wales (company no. 17137604). Lunaire Labs Limited is not VAT-registered. Registered office and other statutory details are publicly available on the Companies House register at Companies House. Contact: .

In practice, because FuelHound does not collect, receive, or process any personal data on any Lunaire Labs server — and because the fuelhound.lunairelabs.uk website retains no access logs or other record of your visit (see Section 9(a)) — the obligations of a data controller in respect of personal data are minimal. All app processing occurs exclusively on your device under your sole control. Lunaire Labs has not designated a representative in the European Union under Article 27 EU GDPR: no processing within Article 3(2) takes place, and the limited correspondence we do handle falls within the exemption in Article 27(2)(a). This policy is provided in the interests of full transparency.

This website is a marketing page and does not itself sell or fulfil anything. FuelHound is distributed exclusively through the Google Play Store; Google processes the one-time purchase transaction under its own terms.

3. Location Data

FuelHound asks for location permission so the map can centre on where you are and sort "nearest stations" by distance. Your GPS coordinates are read and processed on your device, are never sent to Lunaire Labs, and are never transmitted to any analytics or tracking service — FuelHound contains no analytics and no telemetry.

One thing is unavoidable for any map app, and we want to be straightforward about it: to draw the map and find things near you, FuelHound has to tell the relevant service which area it is asking about. Map-tile requests reveal to the tile server (OpenFreeMap) the area of map being viewed; station-location queries send a bounding box around the visible map area to OpenStreetMap's Overpass API; and when you type a place-name search, the search text is sent to the Photon geocoding service together with the current map position so that nearby matches rank first. Where the map is centred on your location, those areas correspond to where you are. These are ordinary, functional requests of the same kind every map application makes: they carry no account, no user identifier, and no tracking, and Lunaire Labs receives none of them. The services involved are listed, with their operators, in Section 6.

Granting location permission is optional. If you decline, FuelHound still works — you can pan the map manually, pick a country in Settings, or type a place name in the search bar. Only the "centre on my location" and "nearest stations" distance-sort features require the permission.

4. Data We Collect

We collect no personal data whatsoever on any Lunaire Labs server.

Data Type	Collected by us?	Details
Name, email, address	No	Never requested, never stored
Location / GPS	No	Read and used on-device; never sent to Lunaire Labs (map and search requests reveal the viewed map area to the map services — see Sections 3 and 6)
Device identifiers	No	No hardware IDs, UUIDs, or fingerprints
IP address (app)	No	FuelHound does not contact any Lunaire Labs server from the app itself
Usage / behavioural data	No	No analytics, telemetry, or event tracking
Crash reports	No	No crash reporting SDK or service
Advertising identifiers	No	No advertising SDK
Payment information	No	Handled entirely by Google Play

5. Data Stored Locally on Your Device

FuelHound stores the following on your device only, using Android's standard preference store (DataStore) and the app's private data directory:

Preferences: Your selected country, preferred fuel type, preferred brand filter, theme choice, trial / unlock flags.
Last map position: The latitude / longitude and zoom of where you last panned the map, so re-opening the app returns you to the same view.
Cached station data: A compressed copy of the national fuel-price feed for each country you've visited, so the map loads instantly next time. This is public data from official government feeds — no personal information is cached.
Favourites: Any stations or places (home, rental return, holiday home, etc.) that you mark as favourites, stored locally.

All of the above is stored in the app's private storage directory, which is not accessible to other apps under normal Android security.

FuelHound opts out of Android's automatic cloud backup and device-to-device transfer (android:allowBackup="false", with cloud backup and device transfer additionally excluded in the app's data-extraction rules). Nothing FuelHound stores is copied to Google's servers by Android's backup system, and nothing is carried across automatically when you set up a new phone — you will simply set your country, fuel type and favourites again, and restore your unlock as described below. This matches the rest of our apps: your data stays on your device and nowhere else.

Your Lifetime unlock is unaffected by this. It is tied to your Google Play account, not to the app's local data, so it is restored automatically when you reinstall FuelHound or install it on a new device while signed in to the same Google account.

Versions of FuelHound before 0.5.47 did not opt out, so a Google Account backup taken from an older version may still contain that app's preferences. Such a backup belongs to and is controlled by you through your Google account, and can be removed there; Lunaire Labs has no access to it.

6. Network Communication

FuelHound fetches fuel-price data from public open-data feeds published by national governments and transparency schemes. These requests are made directly from your device to third-party endpoints and do not pass through any Lunaire Labs server. No personal information about you is sent with these requests beyond the standard HTTP headers your device would send for any web request (user-agent string, and the IP address visible to the destination server).

The feeds FuelHound contacts are:

United Kingdom: the Department for Energy Security and Net Zero (DESNZ) Fuel Finder open-data service at www.fuel-finder.service.gov.uk, published under the Motor Fuel Price (Open Data) Regulations 2025 (SI 2025/1356, made under the Data (Use and Access) Act 2025). The snapshot contains only public station data (name, address, brand, fuel prices, opening status); it contains no information about you.
France: the government open-data platform data.economie.gouv.fr, serving the prix-carburants dataset (Ministère de l'Économie, des Finances et de la Souveraineté industrielle et numérique).
Germany: Markttransparenzstelle für Kraftstoffe (MTS-K), operated by the Bundeskartellamt. The app accesses the data via the Tankerkönig API (creativecommons.tankerkoenig.de), a public redistribution endpoint for MTS-K.
Spain: the official API at sedeaplicaciones.minetur.gob.es behind the geoportalgasolineras.es portal (Ministerio para la Transición Ecológica y el Reto Demográfico — MITECO).
Italy: Osservaprezzi Carburanti open data served from mimit.gov.it (Ministero delle Imprese e del Made in Italy — MIMIT).
Portugal: precoscombustiveis.dgeg.gov.pt (Direção-Geral de Energia e Geologia — DGEG).
Austria: the official API at api.e-control.at behind the spritpreisrechner.at service (E-Control).
Map tiles: OpenFreeMap vector tiles (tiles.openfreemap.org). Map tiles © OpenFreeMap.
Station locations: OpenStreetMap's Overpass API (overpass-api.de), queried with a bounding box around the visible map area so that petrol stations which do not appear in a national price feed can still be shown on the map (without prices). OpenStreetMap data is contributed by volunteers and provided under the Open Database Licence (ODbL).
Place-name search: the Photon geocoding service (photon.komoot.io, operated by komoot GmbH, Germany), which receives the search text you type and the current map position (so nearby matches rank first) and returns matching places. Photon is built on OpenStreetMap data.
Google Play Billing: For the optional one-time £2.99 Lifetime unlock.

Each of those services has its own privacy policy. Lunaire Labs does not receive a copy of your request, the server's response, or any derived data.

A note on earlier versions. Until August 2026, FuelHound obtained UK prices indirectly: our server fetched the DESNZ snapshot and republished a compressed copy at fuelhound.lunairelabs.uk, which the app then downloaded. Version 0.5.53 changed the app to fetch DESNZ directly, in line with every other country, and that republishing endpoint was retired on 2 September 2026 and no longer exists. While it operated, the server was configured to keep no access log of requests to it — IP addresses, request lines, headers and timestamps were never written to disk (see Section 9(a)) — so no record of those fetches was created or retained, and none survives. Versions of FuelHound earlier than 0.5.53 relied on that endpoint and will no longer load UK prices.

Accuracy of the fuel price data — do not rely on it

The feeds listed above are published and maintained by governments, transparency schemes and fuel retailers, not by Lunaire Labs. We copy what they publish and show it to you; we do not set, check, correct or verify any price, and we have no control over how often a retailer updates its figures. A price shown in FuelHound may therefore be stale, missing, or incorrect, and a station may have changed its price, run out of a particular fuel, or closed since the feed was published.

You should not travel to a fuel station on the basis of a price reported in FuelHound. Prices are not guaranteed and the information in the App must not be relied upon for any journey, purchase, or other decision. Treat what you see as an indication only, and always check the price displayed on the forecourt or pump before you dispense fuel. FuelHound is an informational convenience tool; it is not an offer, a quotation, or a contract with any retailer, and the retailer is not bound by anything the App displays.

To the fullest extent permitted by law, Lunaire Labs Limited accepts no liability for any loss, cost, wasted or additional journey, fuel or time expended, or other inconvenience arising from a price shown in the App being inaccurate, out of date, unavailable, or different from the price charged at the station. This is a summary; the operative provisions are Sections 3, 4 and 5 of the EULA. Nothing here excludes or limits any liability that cannot lawfully be excluded, and none of it affects your statutory rights, including your rights under the Consumer Rights Act 2015.

7. Analytics, Tracking, and Advertising

FuelHound does not include, integrate, or utilise any of the following:

Analytics services (e.g., Firebase Analytics, Google Analytics, Mixpanel, Amplitude)
Crash reporting services (e.g., Firebase Crashlytics, Sentry, Bugsnag)
Telemetry or usage tracking of any kind
Advertising networks or ad SDKs
Social media tracking pixels or widgets
A / B testing frameworks
Heat mapping or session recording tools
Any third-party code that collects or transmits user data

8. Permissions

FuelHound requests only the minimum permissions it needs. Each is used for local functionality only.

Permission	Purpose	Data transmitted?
Internet	Fetching fuel-price data from public open-data feeds and map tiles	Standard HTTP requests to the public feed endpoints only — no personal data attached
Location (Fine / Coarse)	Centring the map on your current location and calculating distance to nearby stations	Not to Lunaire Labs, and not as GPS coordinates read from the permission — but map-tile, station-location and place-search requests necessarily reveal the viewed map area to the map services (Sections 3 and 6)
Access Network State	Detecting whether the device has network connectivity before attempting a fetch	No
Billing	Google Play Billing, for the optional one-time £2.99 Lifetime unlock	Handled entirely by Google Play

No permission is used to collect, transmit, or share any personal data with Lunaire Labs. Location, where granted, is used entirely on-device.

9. Website Visitors

When you visit fuelhound.lunairelabs.uk, the following information may be processed:

(a) Web server logs

We do not retain access logs of your visit. Our web server (nginx) is configured with access_log off for fuelhound.lunairelabs.uk, which means no per-request log line — including your IP address, the page or endpoint you requested, the time of the request, the referring URL, or your user-agent string — is written to disk. Routine error events that would normally include client IPs are also discarded (error_log /dev/null crit); only critical-level events such as nginx startup or fatal server errors reach the global error log, and those entries are not associated with any individual visitor.

Because no personal data is collected in connection with your visit or with the app's fetches, no Article 6 legal basis is required for this processing — there is no processing of personal data to base. Your IP address may transit the server in memory while a TCP connection is open, in the same way it must transit any router between you and the server, but it is not recorded, retained, analysed, profiled, shared, or used for any purpose.

Hosting provider. The fuelhound.lunairelabs.uk website is hosted by Hostinger International Ltd on a virtual private server currently located in Manchester, United Kingdom. Hostinger does not receive any personal data from us in connection with your visit, because we collect none. Hostinger's own infrastructure logging (e.g. firewall, DDoS protection) is governed by their privacy policy and is outside our control.

(b) Fonts

Fonts used on this website are self-hosted by Lunaire Labs (served from the same domain as the rest of the site). No third-party font CDN is contacted.

(c) Images

All images on this website — including the "Get it on Google Play" badge — are self-hosted and served from our own domain. Viewing this website causes your browser to make no image, script, or stylesheet request to any third party. If you tap the badge, you will of course be taken to the Google Play Store, which is governed by Google's Privacy Policy.

(d) Cookies and tracking

This website does not use cookies, local storage, session storage, or any other browser-based tracking mechanism. No consent banner is displayed because none is required under the Privacy and Electronic Communications Regulations (PECR).

(e) No analytics or advertising

This website does not use any analytics services, advertising networks, social-media tracking pixels, heat mapping tools, A / B testing frameworks, or any other form of visitor tracking or behavioural profiling.

10. No account required

FuelHound does not require you to create an account, provide an email address, enter a phone number, or sign in with any service (Google, Facebook, Apple, or any other). The app works entirely without any personal identifier linking usage to you.

11. Third-Party Services

(a) Google Play Store

FuelHound is distributed through the Google Play Store. If you purchase the Lifetime unlock, that transaction is processed and managed entirely by Google. Google may collect data in accordance with their own privacy policy. We do not have access to your payment details, Google account information, or any personal data held by Google. See Google's Privacy Policy for details.

(b) Public open-data feeds and map services

FuelHound fetches fuel-price data from the public open-data feeds listed in Section 6, map tiles from OpenFreeMap, station locations from OpenStreetMap's Overpass API, and place-name search results from the Photon geocoding service (komoot GmbH). Those services operate independently of Lunaire Labs. When your device contacts them, standard HTTP metadata (including your IP address as seen by the destination server) and the functional content of the request (the map area, bounding box, or search text described in Sections 3 and 6) may be logged by the operator of that service. Lunaire Labs has no access to those logs.

12. Children's Privacy

FuelHound is not directed at children. The minimum age of use matches Google Play's minimum-age policy for the territory (13 in the United Kingdom, per s.9 Data Protection Act 2018). Users in EU jurisdictions where the age of consent for information-society services under Article 8 UK/EU GDPR is set higher (up to 16) must meet that local minimum. We do not knowingly collect any personal data from any person, including children. Since the app collects no data at all on our side, no age-verification mechanism is necessary. If you believe that a child has somehow provided personal data to us, please contact us at .

13. Your Rights Under UK GDPR and EU GDPR

Under the UK GDPR, the EU GDPR (where you are located in the EEA) and the Data Protection Act 2018, you have the following rights:

Right of access — to request a copy of personal data we hold about you.
Right to rectification — to have inaccurate personal data corrected.
Right to erasure — to request deletion of your personal data.
Right to restrict processing — to request that we limit how we use your data.
Right to data portability — to receive your data in a structured, machine-readable format.
Right to object — to object to certain types of processing.
Rights related to automated decision-making — the right not to be subject to decisions based solely on automated processing.

In practice, these rights have little to act on because Lunaire Labs does not collect, receive, or hold any personal data from you. FuelHound does not transmit any personal data to Lunaire Labs — all app data is under your sole control on your device and can be removed at any time using the system-level "Clear storage" action or by uninstalling the app (see Section 14). The fuelhound.lunairelabs.uk website does not retain access logs or any other record of your visit, as described in Section 9(a). If you nonetheless wish to make a formal data-protection request, email with "Data request" in the subject and we will respond within one month as required by Article 12(3) UK GDPR / EU GDPR.

14. Data Deletion

Because all app data is stored locally on your device, you have complete and sole control over it at all times. You can delete everything FuelHound has stored by:

Using your device's Settings → Apps → FuelHound → Storage → Clear Storage; or
Uninstalling the app, which removes all associated data.

We cannot delete your data for you because we do not have it and have never had it.

15. Data Security

Because the app stores data locally and does not transmit personal data, the security of that data is determined by the security measures on your own device (e.g., screen lock, device encryption, biometric authentication). We recommend keeping your device's operating system and security patches up to date.

16. Data Breach Notification

Because we do not collect, process, or store personal data on any server or cloud service — not even web-visit or app-fetch logs — a data breach originating from our systems is not possible in the usual sense. We have no databases, cloud storage, or back-office systems holding personal data that could be compromised. In the extremely unlikely event that we become aware of any security incident affecting any aspect of our operations, we will promptly assess the situation and, if required by applicable law, notify affected individuals and the Information Commissioner's Office (ICO) within the timeframes prescribed by the UK GDPR.

17. International Data Transfers

Lunaire Labs does not transfer personal data internationally or otherwise, because we do not collect personal data. The FuelHound app stores all data exclusively on your device in the country where you use it. The fuelhound.lunairelabs.uk website retains no access logs or other record of your visit. Network requests FuelHound makes to public open-data feeds may originate from whichever country your device is in and will terminate at the endpoint's server (most of which are within the EEA or the UK); those requests do not include personal data and Lunaire Labs has no access to any logs those third-party services may keep on their side. As a matter of factual disclosure, this website is operated by Hostinger International Ltd from a data centre in Manchester, United Kingdom (see Section 9(a)).

18. Legal Basis for Processing

Under Article 6 of the UK GDPR / EU GDPR, any processing of personal data requires a legal basis. Because Lunaire Labs does not collect or process any personal data — including IP addresses, web-visit data, or app-fetch data — on any server or remote system, no Article 6 legal basis is required on our part. All app processing occurs locally on your device under your sole control. This section is included for completeness and transparency.

19. Complaints

If you have any concerns about how your data is handled, you have the right to lodge a complaint with the Information Commissioner's Office (ICO):

Website: ico.org.uk
Phone: 0303 123 1113
Post: Information Commissioner's Office, Wycliffe House, Water Lane, Wilmslow, Cheshire, SK9 5AF

If you are located in the European Economic Area, you may also lodge a complaint with the data protection supervisory authority of your country of habitual residence, your place of work, or the place of an alleged infringement, in accordance with Article 77 EU GDPR. A list of EEA supervisory authorities is maintained by the European Data Protection Board at edpb.europa.eu.

We would appreciate the opportunity to address your concerns before you contact a supervisory authority. Please reach out to us first at .

20. Changes to this Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or other factors. The most current version will always be available at fuelhound.lunairelabs.uk/privacy. Material changes will be indicated by updating the "Last updated" date. Since we do not collect any contact information, we cannot notify you directly; we encourage you to review this page periodically. Significant changes may also be communicated through app update release notes on Google Play.

21. Contact

Questions about this Privacy Policy? Email .