Privacy policy

Updated: 2026-11-09

CarGenius works without an account: we never ask for your name, phone number or a password. We store what the scanner read from your car and what you type, to give you the diagnosis and your history. You can delete all of it from the app.

Who is responsible for your data

The data controller is [full name or company name], [full address]. For anything about privacy, write to hola@cargenius.app.

What we store

From your phone. The first time you ask for a diagnosis, the app creates a random identifier that isn't tied to your name or number, and tells us whether it's an iPhone or Android and the app version.

From each diagnosis. The car's make, model and year; the vehicle identification number (VIN) if the scanner could read it; fault codes; sensor readings such as voltage and temperatures; emissions self-test status; the adapter name; what you wrote about the problem; the language and country set on your phone; and the AI's answer.

If you tell us how it was fixed. Which repair worked and, if you enter it, what it cost.

If you join the waitlist on the website. Your email, whether you use iPhone or Android, your language, your country and whether you want the adapter.

We don't ask for your location, contacts or photos. The app has no ads and no third-party tracking or analytics tools.

What we use it for

  • Giving you the diagnosis and keeping it in your history.
  • Answering faster: if someone sends exactly the same readings, we reuse the diagnosis already made.
  • Improving diagnoses with the repairs owners report, without linking them to a person.
  • Emailing you when the app or the adapter is available, if you joined the waitlist.

Phone permissions

Bluetooth: only to talk to the OBD2 adapter plugged into your car.

Local network: only for adapters that connect over Wi-Fi.

Who we share it with

We don't sell or rent your data. Only these providers receive it, and only what the app needs to work:

  • Anthropic (United States), which runs the Claude AI. It receives the diagnosis readings, what you wrote, the language and the country. It does not receive your VIN or your identifier.
  • NHTSA (the US road safety agency). We send it the VIN to find out which car it is. It receives nothing else about you.
  • Amazon Web Services (United States), where the data is stored.

Some of these providers are outside your country, so your data may be processed in the United States. Authorities may also request data where the law requires it.

How long we keep it

Your diagnoses stay until you delete them. Uninstalling the app does not delete them from the server, so delete them from the app first. Waitlist emails stay until you ask us to remove you.

Your rights

You can ask to see, correct or delete your data, object to how we use it, or ask for a copy. The fastest way is the app: in History, open the ⋮ menu and tap Delete my data. For anything else write to hola@cargenius.app and we'll answer within 20 business days.

Since there is no account, we can only identify your diagnoses through the app on the phone that created them. You can also contact the data protection authority in your country.

Children

CarGenius is for people who drive or look after a car. It is not directed at children under 16.

Changes to this policy

If we change something important we'll publish it on this page with the new date and, if you're on the waitlist, email you.