Privacy policy
Effective 5 November 2026.
1. Who we are
The carSLang service — the mobile app, its web version at app.carslang.com and the site carslang.com (the "Service") — is provided by Individual Entrepreneur Volodymyr Petlovy ("we"), registered and acting under the laws of Ukraine, entry in the Unified State Register of Legal Entities, Individual Entrepreneurs and Public Organisations No. 2006760010002018965 of 9 June 2025, individual tax number 3035306711. Address: Ukraine, Khmelnytskyi Oblast, Khmelnytskyi, Oleksandra Kushniruka Street, build. 12/1, apt. 1. Tel. +38 067 172 31 38. Email: contact@carslang.com.
The Service is provided "as is", without any warranty, express or implied.
2. What data we process
- Account data: email, name, password (kept in protected form), the app's language.
- Car data: VIN, make, model, year, your notes, and the data the adapter read from the car.
- Diagnostic sessions: your chat with the assistant, data recordings and scan results.
- Technical data: identifiers of the app install and of the adapter, and the push token — what the Service needs to work.
- Reports of the assistant's answers: the reason and your comment.
We do not collect your location: the location permission only lets the phone read the Wi-Fi network's name during the adapter's setup. The photo of a document the app reads the VIN from, and your voice while dictating, are processed on the phone and not sent to us. We do not collect contacts, files, photos or videos, financial data or browsing history.
3. Why
To provide the Service: to run your account, diagnose your car and answer your questions, send account mail and notifications, prevent abuse of the free allowance, and improve the Service.
4. Who processes data on our behalf
We do not sell the personal data we collect or pass it to third parties for their own purposes.
Some of the work is done by service providers that process data only on our behalf: artificial-intelligence model providers (to write the assistant's answer), and push notification, email and web search services. Search queries carry no personal data and no car's identifiers.
We may use third-party services to collect non-personalised statistics and to process errors.
We may disclose data where the law requires it.
5. Third-party services
To run carSLang we may use third-party services, including: hosting and infrastructure (for example, Hetzner, DigitalOcean, Amazon Web Services), error monitoring (Sentry, Bugsnag, Rollbar), push notifications (Expo Push, Firebase Cloud Messaging, Apple Push Notification service), artificial-intelligence models (Anthropic, OpenAI, Google), web search (Brave Search, Microsoft Bing, Google), email delivery (Brevo, SendGrid, Amazon SES) and app stores (Google Play, App Store). Each such service processes data under its own terms of use and privacy policy, which supplement this Policy. We do not control third-party services and, to the extent permitted by law, are not responsible for their processing of data, availability, outages or changes to their terms, or for any other act or omission of theirs. By using carSLang, you also agree to the terms of these services insofar as they concern your use.
6. Car data and the knowledge base
We may use a car's technical data — fault codes, readings, details of its control units — to build our knowledge base, without data that identifies a person.
Nothing you send trains an artificial-intelligence model automatically.
7. How long
We keep data while your account exists, and a car's data until you delete the car. After you delete your account, only what is necessary remains:
- a protected fingerprint of your email — never the address itself — on our legitimate interest: so that the free allowance is not reset by signing up again;
- accounting records the law requires us to keep;
- anonymised records and statistics that do not identify you;
- the history of a car you handed to its next owner — it stays theirs, without your chats with the assistant.
We back up data daily and keep each backup for up to 14 days. Data you deleted leaves the backups within those 14 days, and deleted files leave our storage within about 8 days.
8. Deleting your account
You can delete your account in the app (Profile) or at app.carslang.com/profile/delete-account.
9. Security
Data travels over an encrypted connection, and sensitive data is kept in protected form. You are responsible for the security of your device and of access to your account.
10. Children
The Service is not meant for children under 13, and we do not knowingly collect their personal data. If we learn that such data has reached us, we delete it. A parent or guardian can write to contact@carslang.com.
11. Your rights and contact
We process personal data under the laws of Ukraine, including the Law of Ukraine "On Personal Data Protection". To learn what data of yours we hold, or to correct or delete it, write to contact@carslang.com.
12. Changes
We may update this policy. A new version is published on this page with a new effective date.