Privacy policy

PropertySieve browser extension · last updated 6 July 2026

What we collect

Nothing. PropertySieve has no servers, no accounts, no analytics and no telemetry. The developer receives no data of any kind from the extension.

What the extension stores

Your search criteria, shortlist, rejection list, price history and related notes are stored by your browser on your device (chrome.storage.local). This data never leaves your machine unless you use the Export button, which saves it to a file you control.

Network requests

The extension talks only to the property portal you are browsing (rightmove.co.uk or onthemarket.com), using your existing session, to read listing pages you could open yourself. It makes no requests to any other service, with one opt-in exception: if you enable drive times by entering your own OpenRouteService API key, the extension sends your saved destinations and listing coordinates to api.heigit.org (HeiGIT, Heidelberg) to compute journey times. That feature is off until you add a key, and the computed times are stored only in your browser.

Third parties

No data is sold, shared or transferred to anyone, because none is collected.

Contact

Questions: Commissioned Code.