This policy describes how the “Vinted Deal Checker” Chrome extension handles data. It is an unofficial tool and is not affiliated with, endorsed by, or sponsored by Vinted.
Summary
This extension does not collect, transmit, or sell any user data. Everything runs locally in your browser session.
What data is stored and where
| Data | Storage | Purpose | Retention |
|---|---|---|---|
| User preferences/settings | chrome.storage.sync (cross-device via Chrome sync) | Toggles, thresholds, panel position | Until removed / uninstall |
| Watched item list | chrome.storage.local (device local) | Per-item price targets + alerts | Until user removes / clears |
| Price history | chrome.storage.local (device local) | “First seen / delta” in the panel | Capped (100 items × 30 prices) |
| Seller profile cache | chrome.storage.local (device local) | Faster page-to-page browsing | 15 min TTL, capped (60 sellers) |
The watchlist, price history and seller cache live in chrome.storage.local inside the
extension’s own storage area on your device — nothing leaves your machine.
Preferences sync (Chrome sync)
Your preferences (toggles, thresholds, panel position) are stored with chrome.storage.sync.
That is a standard Chrome feature: it syncs the value across your own signed-in devices through Google’s
sync servers, subject to Google’s privacy practices. It contains no item, seller, price or browsing data.
Everything else the extension stores stays strictly on-device.
Network requests
- Vinted public API only. The extension calls Vinted’s own public API endpoints (e.g. item details, catalog search, seller profile) same-origin from the page you’re visiting, using your existing Vinted session. We do not have a backend.
- No analytics, no advertising, no third-party network calls.
- The only off-device transmission is your own preferences, synced by Chrome sync (see “Preferences sync” above). No other personal data is sent anywhere.
Permissions
storage— saving settings (viachrome.storage.sync), watchlist, price history, and seller cache locally.notifications— showing local price-drop / watch-target alerts.alarms— periodically re-checking your watched items in the background.host_permissions(www.vinted.*) — to run the content script and call Vinted’s public API only on Vinted pages.
Data control / deletion
All stored data can be removed at any time by:
- Opening the extension’s Options page → Reset all, or
- Using the Clear button on the watchlist, or
- Uninstalling the extension (Chrome removes extension storage automatically).
Contact
For questions about this policy, open an issue on the extension’s source repository.