SnagFlatPrivacy Policy
Last updated: June 24, 2026
SnagFlat is a Chrome extension that shows rent-stabilization and apartment orientation badges on supported NYC rental-listing sites (currently StreetEasy). We built it to need as little of your data as possible. This policy explains, in plain English, exactly what the extension does and does not do with information.
The short version: the only thing SnagFlat sends to our servers is the address of the listing you're looking at (plus its borough and zip, when available) so we can look up the building. No accounts, no tracking, no browsing history, and we don't sell anything.
What we collect and send
When you view a supported listing, the extension reads the listing's address — and, when the page provides them, the borough and zip code — and sends just those to SnagFlat's backend to identify the building and look up its public records.
That's it. In particular, SnagFlat does not:
- require or create any account, login, or profile;
- collect your name, email, phone number, or payment information;
- collect or transmit your browsing history or the other tabs/sites you visit;
- use advertising or analytics trackers, fingerprinting, or third-party cookies;
- sell, rent, or share your personal information with anyone for marketing.
Data minimization & logging
We designed lookups to be address-keyed, not person-keyed. We do not associate addresses with your IP address or any user identifier. If we keep short-lived logs of lookups for caching, debugging, or abuse-prevention, those logs are keyed by the building address and are retained only as long as needed for those operational purposes, then discarded.
Permissions the extension uses
The extension reads the content of the listing page you are already viewing on supported sites, solely to extract the address and draw the badges. It does not read pages on other sites, and it does not watch your general browsing. The extension holds no secret keys; all data-source lookups happen on our backend.
Local storage in your browser
To avoid repeating the same lookup when you revisit a listing, the extension caches
results locally in your browser using Chrome's extension storage
(chrome.storage). Your results-page badge filter preferences are also
stored there so they persist across pages and reloads. This data stays on your
device; you can clear it by removing the extension or clearing its storage.
Third-party data services
To determine the badges, our backend matches the address against public New York City data sources and services. We pass along the address (and borough/zip) needed for these lookups; we don't send any personal information about you. These services include:
- NYC Planning GeoSearch — the City's geocoder, used to turn the address into a building identifier.
- NYC Open Data — public City datasets, including tax abatement/exemption records, building footprints, and property (PLUTO) data.
- JustFix "Who Owns What" — a public, tenant-advocacy data service used for rent-stabilization signals.
These are operated by third parties under their own terms and privacy practices. We use them only to look up building-level public records, not to profile you.
Hosting
Our backend runs on Vercel. As with any web request, our hosting provider may process standard network metadata (such as IP address) transiently to deliver the response. We do not use that metadata to identify you or to link it to the addresses you look up.
Children
SnagFlat is a general-audience tool for browsing apartment listings and is not directed to children under 13. We don't knowingly collect personal information from children.
Changes to this policy
If we make material changes, we'll update this page and revise the "last updated" date above. Continued use of the extension after a change means you accept the updated policy.
Contact
Questions about privacy? Email privacy@snagflat.com.