Privacy
Last updated May 23, 2026.
melchvr is built privacy-first. This page explains exactly what we do — and what we don't do — with your data. We keep it short because there's very little to say.
What we collect on this website
Nothing for analytics. We don't use analytics, telemetry, third-party trackers or behavioural profiling. We don't run an ad network. We don't show a cookie banner because we don't set tracking cookies. One narrow exception is described under "Install attribution" below.
Local browser storage
Your browser stores two preferences locally: your market (es / fr / us) and your theme (light / dark / system). They never leave your device and they aren't cookies.
Affiliate links
Blog posts link out to retailer pages using affiliate programs. When you click and buy, the retailer pays us a small commission. The retailer sees the click came from melchvr; we never see who you are or what you bought.
The mobile app
iOS and Android use Supabase (EU region) for storage and authentication. The app supports anonymous sign-in so you can use it without an account. Wishlist data is yours; we don't replicate or share it with third parties.
Install attribution
When you open a melchvr.app/join/… invite link and don't have the app installed, we briefly store a non-reversible fingerprint (SHA-256 of your IP address, screen size, timezone and browser language) next to the invite path. The first time the freshly installed app launches it sends the same fingerprint to fetch the matching invite and the row is deleted immediately. Unused rows are deleted automatically within 24 hours. No account, no identifier and no profile is linked to this fingerprint.
AI training
We do not use your wishlists, reservations or any user-generated content to train AI models. Public blog content is opted into LLM crawlers (GPTBot, ClaudeBot, PerplexityBot) so we can show up in their answers — that's the only AI surface.
Our promise
We will never sell your data. We have nothing to sell — we don't collect it. Revenue is the affiliate program. That's it.
Contact
Privacy questions go to privacy@melchvr.app. Data deletion requests too — we'll wipe your account on request, no questions.