Keep or Replace?
Privacy Policy
Last updated: 10 August 2026
← Back to the calculatorWho we are
Keep or Replace? is an online car repair-versus-replacement decision tool operated by Hellika Hollo in Estonia. For any privacy question or request, email hellika83@gmail.com.
No account needed
You do not need to register or sign in to use Keep or Replace?. We do not ask for your name, address or phone number to run the calculator.
The numbers you enter
The figures you type into the calculator are processed in your own browser. They are also kept in your browser's session storage so that your inputs and result survive the return trip from the payment page and you do not have to type them twice.
These calculator figures are not stored in a database on our side and are not used to build a profile about you.
Browser storage
Your calculator inputs are kept in your browser's session storage, which is cleared when the browser session ends. They are never stored in a database on our side and are not used to build a profile about you.
A reference to your completed one-time purchase is remembered on the same browser and device using local storage, so you can come back later without paying again. When you return, that reference is re-checked with Stripe on our server before any paid content is shown. This does not store any payment or card details — only the Stripe checkout session identifier. Clearing your browser data, using a private window, or switching to a different device or browser may remove this remembered access, in which case you may need to restore it by contacting us with your payment confirmation.
We do not use advertising cookies, marketing trackers or analytics scripts on this site.
Payments
The optional one-time purchase is processed by Stripe. Payment details such as your full card number are entered in Stripe's own secure checkout. We never receive or store your full card details.
When you come back from checkout, our server receives a Stripe checkout session identifier and asks Stripe whether that session was paid. On a successful payment, the checkout session identifier is remembered on your browser/device using local storage so you can return later without paying again; on each return visit it is re-verified with Stripe on our server before any paid content is shown. Stripe processes payment and any information you give it as its own controller, under Stripe's privacy policy.
Email you send us
If you email us about support, a refund or a privacy request, we keep that message and your email address for as long as needed to handle your request and to keep a record of it.
Your rights
Under EU data protection law you may ask for access to, correction of, or deletion of personal data we hold about you, and you may object to certain processing. Because the calculator does not require an account, most of what you enter never reaches us — clearing your browser data removes it. For anything else, contact hellika83@gmail.com.
Changes
If this policy changes we will update the date at the top of this page.