LeanCarCost
Privacy Policy
Last updated: August 2026
The same rule applies to LeanCarCost as to every LeanTools app: your data is your data. What your car costs to run is nobody else's business, ours included.
01 Controller
The party responsible for data processing under this Privacy Policy is: Jochen Köneke · Am Pfeilgraben 11 · 39171 Sülzetal · Germany · Email: support@greyhead99.com
02 Data We Collect: The App
Fuel, servicing, and cost entries, along with the vehicles you track, are stored solely on your device and in your personal iCloud account. We have no access to any of it and no server of ours is involved.
03 Location & Fuel Station Data
To show nearby fuel stations and their current prices, the app can send your current coordinates to Tankerkönig (Tankerkoenig GmbH, tankerkoenig.de), a German fuel-price data provider, each time you look up nearby stations, and separately to Apple's MapKit for the station search itself. No account, name, or other identifying data accompanies these requests — only the coordinates needed to answer the query. This only happens if you grant location access and use the fuel station lookup; you can decline or later revoke access in Settings without losing any other functionality. Legal basis: Art. 6(1)(a) GDPR (your consent, given via the iOS location permission prompt).
04 Voice Dictation
If you dictate a fill-up instead of typing it, your speech is transcribed entirely on your device using Apple's on-device speech recognition. The recording is never transmitted anywhere — not to us, not to Apple, not to any other party.
05 Data We Collect: This Website
When you visit this website, our hosting provider (STRATO GmbH, Otto-Ostrowski-Straße 7, 10249 Berlin, Germany) automatically records standard server log files. These contain your IP address, the date and time of your request, your browser type, and the page you requested. This data is used solely to ensure the secure and stable operation of the website and is deleted after a maximum of 7 days. Legal basis: Art. 6(1)(f) GDPR, our legitimate interest in operating a secure website.
06 Language Preference
This website stores your language preference (preferredLang) locally in your browser using localStorage. No personal data is transmitted to us or any third party as part of this.
07 iCloud Sync
If you leave iCloud sync enabled, your vehicle and cost data will sync between your own devices through Apple's iCloud infrastructure, under Apple's Privacy Policy (www.apple.com/legal/privacy/). Apple acts as an independent data controller for this processing. We do not operate any servers involved in this process. Apple Inc. is based in the United States; data transfers from the EU to the US are covered by Apple's certification under the EU–US Data Privacy Framework (www.dataprivacyframework.gov/participant/4000). As with every LeanTools app, sync will be optional and can be turned off in Settings.
08 Analytics
LeanCarCost does not use any third-party analytics SDKs. We use App Store Connect's built-in aggregate statistics (provided and operated by Apple Inc.) to understand general usage trends. Apple processes usage data (such as device type and app version) before we receive any information; what we see is anonymised and aggregated. Apple acts as a separate data controller for this processing.
09 Data Retention
We only retain personal data for as long as necessary for the stated purpose: server logs (website) for a maximum of 7 days, then automatically deleted; email correspondence (support) for up to 2 years after the matter is resolved, unless a longer retention period is required by law. Your vehicle and cost data lives with you alone: how long you keep it is entirely your decision.
10 Transfers to Third Countries
Apple Inc. (iCloud, App Store Connect) is based in the United States. These transfers are covered by Apple's certification under the EU–US Data Privacy Framework. We do not otherwise transfer personal data outside the European Economic Area.
11 Your Rights
You have the following rights regarding your personal data: right of access (Art. 15 GDPR), right to rectification (Art. 16 GDPR), right to erasure (Art. 17 GDPR), right to restriction of processing (Art. 18 GDPR), right to data portability (Art. 20 GDPR), and right to object to processing (Art. 21 GDPR). To exercise your rights, please contact: support@greyhead99.com
12 Right to Lodge a Complaint
You have the right to lodge a complaint with a data protection supervisory authority regarding the processing of your personal data. The competent authority is: Landesbeauftragter für den Datenschutz Sachsen-Anhalt, Leiterstraße 9, 39104 Magdeburg, Germany (www.datenschutz.sachsen-anhalt.de). You may also contact the supervisory authority in the EU member state where you reside or work.
13 Contact
Questions about privacy? We're happy to answer them. Reach us at support@greyhead99.com