Privacy Policy

Not a Translator Experiment Pro (browser extension) · Last updated: August 2026
In short: This extension sends only the looked-up word or expression to the needed services. The reader and PDF viewer process page and document content entirely on your device. It does not collect your identity, history or location, does not track you, show ads or sell data.
What the extension does

Not a Translator Experiment Pro enriches the Not a Translator tooltip with images, SenseMap and RootMap, and adds a reader and PDF viewer so the same tooltips can work in long texts and PDF documents.
Reader and PDF viewer: local processing

The reader analyzes the current page in your browser to extract the article and remove menus, adverts and sidebars.
The PDF viewer downloads the PDF you explicitly choose to open from its hosting site and renders it locally.
No page content, document content or filename is sent to the developer or third parties by these features. Only individual words you look up leave the browser.


Broad site access

The Pro edition may request access to all sites (<all_urls>) because a PDF can be hosted on any domain and the reader works on the page you are reading. This permission is not used to inventory visited sites.
Data processed

For lookups, the extension transmits only the word or expression you choose. It does not transmit the full page, URL, surrounding text, your identity or other content.
What is not collected

No personally identifiable information.
No accounts, passwords or authentication data.
No financial or payment information.
No browsing history or URLs.
No geolocation.
No analytics, advertising or behavioral tracking.
No sale or sharing with data brokers.


External services contacted

Each external service receives only the looked-up word or expression and only for the feature it powers.

Wiktionary - definitions, synonyms, antonyms, word family and etymology.
notatr-proxy - Cloudflare Worker operated by the developer; caches image lookups and protects API credentials.
Unsplash and Openverse - illustrative photographs through the proxy, with strict filtering for Unsplash.
iNaturalist, GBIF, Wikidata, Wikimedia Commons - photographs of species and objects.
OpenStreetMap / Nominatim - map thumbnails for place names.
LINDAT / UDPipe - lemmatization.


Donor key

Some features are reserved for donors and may use a signed key. It contains only a salted irreversible fingerprint derived from the donor email address and is sent only to developer services for validation and authorization.
Caching

Results may be cached in browser memory and on the developer Cloudflare edge or cache server. The cache is keyed by word or expression, not by user identity, and may be monitored to prevent abuse, attacks and drift.
Data stored on your device

Local settings include feature options, donor-key validation status where applicable, reader/PDF preferences and temporary state required for operation. No lookup history or page/document content is stored as a user profile.
Donations

Donations are optional and handled outside the extension. Email correspondence after a donation is used only to reply, send the install link and generate a donor key, not for marketing.
Children

The extension is designed to remain child-friendly. Unsplash images use the strict content filter, and there is no advertising or behavioral tracking.
Changes

This policy may be updated as features evolve.
Contact

Questions about this policy: bongo_plats@icloud.com