Privacy
Last updated September 2026
Hange works without an account. This page says exactly what is stored, why, for how long, and how to have it removed.
Who is responsible
Hange is operated by Arthur Davtian, an individual based in Belgium, who is the data controller for everything described here. Contact: privacy@hange.app [postal address to be added].
What is stored, and why
Your questionnaire answers
When you complete the questionnaire we store your answers exactly as given — budget, use cases, priorities, required features — together with the recommendation they produced and a record of which version of our catalog generated it.
This is stored because your results live at a private link you can return to or share, and because a recommendation cannot be explained later without the answers that produced it and the catalog it was drawn from.
Your answers are not personal data in themselves — they describe a laptop you want, not you — and they are stored without any identifier that links them to you unless you give us your email address.
Your results link
Each recommendation gets a long random token, which is the address of your results page. Anyone with the link can view that result. It is not listed or searchable, and it is not guessable, but treat it as you would any private link: sharing it shares the answers you gave.
Your email address, only if you ask for it
If you choose to have your results emailed, we store your email address against that recommendation and use it to send you that email. We do not send marketing, and we do not share it. If you do not ask for results by email, we never collect an address.
Which links get clicked
When you click through to a retailer we record which laptop and which position on the page it was, so we can tell which recommendations people find useful. This record is not linked to your identity.
Your IP address, for abuse prevention
To stop automated abuse from exhausting the service, we count how many requests come from each visitor over short time windows. Visitors are identified by IP address, which is personal data, so it is named here rather than buried under “technical data”.
The IP address is used only as a counter key and is never attached to your answers, your results, or your email address. Counters are short-lived by nature — they cover a window of minutes and are discarded once it closes.
What we do not do
- No advertising networks — we do not embed ad trackers
- No selling or sharing — your answers and email are not sold, rented, or passed to anyone for their own purposes
- No profiles across visits — we do not build a record of you over time
Cookies and analytics
Hange sets no cookies and runs no analytics. There is no tracking pixel, no advertising tag, and no third-party script watching what you do here. That is why you have not been asked to accept anything.
If this ever changes, this page changes first, and anything non-essential will ask for your consent before it runs.
Who else processes your data
Running the site means other companies handle data on our behalf. They act only on our instructions:
- Vercel — hosts the website and serves pages
- Supabase — stores recommendations and email addresses
- An email delivery provider — sends results emails, if you request one — named here once one is chosen
Your data is stored in the European Union. Our database runs in Paris (eu-west-3) and the site is served from EU regions.
If a provider ever needs to process data outside the European Economic Area, this page will say so and name the safeguard that permits it.
Legal basis
- Providing the recommendation you asked for — performance of a contract — you asked for a result, we store what is needed to produce and re-serve it
- Emailing your results — your consent, given by entering your address; you can withdraw it at any time
- Abuse prevention and click counts — our legitimate interest in keeping the service available and knowing which results are useful
How long it is kept
- Recommendations and answers — 90 days, after which they are deleted automatically and the results link stops working
- Email addresses — deleted when the recommendation they belong to is deleted
- Click records — kept in aggregate; they contain nothing identifying
Your rights
Under the GDPR you can ask us for a copy of your data, ask us to correct or delete it, ask us to restrict or stop processing it, and ask for it in a portable format. You can withdraw consent for results emails at any time.
Email privacy@hange.app. Because we store no account, the practical way to identify your data is the results link — include it and we can act on that specific record. We will respond within one month.
If you think we have handled your data wrongly you can complain to your national data protection authority. In Belgium that is the Gegevensbeschermingsautoriteit / Autorité de protection des données (gegevensbeschermingsautoriteit.be).
Changes
If this policy changes materially, the date at the top changes and the previous version remains available on request.