Signal Intelligence - Privacy Policy
- Everything the extension saves stays in your own browser. The developer runs no server and receives no data.
- No accounts, no analytics, no advertising, no tracking, no selling or sharing of data.
- Your YouTube API key, if you add one, is stored only on your device and is sent only to Google's YouTube Data API.
- You can delete everything at any time.
1. What the extension does #
Signal Intelligence helps you follow the Indian phone market. It reads phone product pages on Flipkart, Amazon.in, mi.com and the vivo India E-Store that you choose to capture, keeps a local price history, compares models, shows public news and community posts about those models, and can fetch public YouTube comments for videos you ask about.
2. Data the extension stores #
All of the following is stored locally in the extension's storage in your browser (chrome.storage.local). None of it is transmitted to the developer.
| Data | Where it comes from | Why |
|---|---|---|
| Product observations: title, variant, colour, price, MRP, seller, rating, review count, page address, time of capture | The product page you capture, or a tracked listing that Daily Tracking re-reads | Price history, comparison and trend views |
| Launch Radar notes and on-device launch briefs: the headline, source, date and label you save, plus any brief written from them | What you save, and Chrome's built-in AI on this computer for a brief | Launch Radar. A brief is written only when you press Write brief, is kept with the notes it was made from, and is never sent anywhere |
| Your own notes, model labels, competitor sets, price floors, price-move alert rules, launch dates and settings | What you type in the extension | Launch Radar, Compare, Competitors, Insights and preferences. Insights is built only from data already saved in your browser and makes no network request |
| News and community items: title, link, publisher name, date | Public RSS feeds you have enabled (Google News, Reddit, Smartprix, and any https feed you add) | Social Feeds. Author names and post bodies are not kept |
| YouTube video details and public comments: comment text, author display name, author profile image address, like count, dates | YouTube Data API v3, only when you start a fetch | YouTube Comments page and your exports. The newest 6 results are kept on your device until you clear them, together with any on-device summary made from them |
| YouTube API key (optional) | You paste it in | Required by YouTube Data API v3. Kept on your device, shown masked, never included in exports |
The extension does not read or store your browsing history, your logins, cookies, account details, payment details, addresses, or the contents of pages other than the product pages you capture or track.
3. Network requests #
The extension makes requests directly from your browser, only to the sites below, and only after you grant access to each one. There is no developer server in between.
| Site | When |
|---|---|
| www.flipkart.com, www.amazon.in, www.mi.com, shop.vivo.com | When you turn on Daily Tracking, the extension opens each tracked product page in a background tab, reads the price details, and closes the tab |
| news.google.com | When Social Feeds refreshes. The request carries search words such as the phone model names you track |
| www.reddit.com, www.smartprix.com | When Social Feeds refreshes. These are plain feed downloads and carry no search words |
| Any https site you add as a custom feed | Only for feeds you add yourself |
| www.googleapis.com (YouTube Data API) | Only when you fetch YouTube comments. The request contains your API key and the video address or search words you entered |
When Daily Tracking opens a tracked product page in a background tab, your browser sends that site the same cookies it would send on a normal visit. If you are signed in to Flipkart, Amazon.in, mi.com or the vivo E-Store, that site will see the visit as yours, exactly as if you had opened the page yourself. The extension does not read, copy or store those cookies, and it adds nothing to the request beyond the page address.
These sites receive ordinary web requests from your browser and handle them under their own privacy policies. The extension uses YouTube API Services; by using that feature you also agree to the YouTube Terms of Service, and Google's handling of data is described in the Google Privacy Policy.
4. Permissions and why they are needed #
| Permission | Reason |
|---|---|
storage | Save your history, notes, settings and cache on your device |
activeTab and scripting | Read the product page in the tab you are looking at, only when you click Capture Page |
alarms | Run Daily Tracking on a schedule while it is switched on |
| Optional site access (Flipkart, Amazon.in, mi.com, the vivo E-Store, Google News, Reddit, Smartprix, YouTube Data API, and custom https feeds) | Requested one feature at a time, only when you use that feature. You can revoke it from chrome://extensions |
5. How long data is kept #
- Daily updates of tracked listings: kept in full for the last 7 or 10 days, as you choose in Daily Tracking. Older Daily updates are merged into a single point per listing (the newest of them, with its price and time) rather than kept one by one. A listing's newest reading is always kept. Captures you save yourself, your notes, and paused or untracked listings are never touched, and are kept until you delete them.
- Social Feeds items: up to 500 items, and items older than 90 days are removed.
- YouTube results and on-device summaries: the newest 6 results are kept until you press Clear Saved Results, a newer fetch replaces them, or you remove the extension.
- Launch briefs: one per launch, for the newest 30 launches, kept until you press Remove on the brief, the notes change so it is out of date and you no longer rewrite it, or you remove the extension.
- YouTube API key: kept until you clear it.
6. Your controls #
- Delete individual price observations and competitor sets, clear saved feed items, clear saved YouTube results and summaries, or clear the YouTube API key from inside the extension.
- Turn Daily Tracking off at any time; its schedule is removed immediately.
- Export YouTube comment results as CSV or JSON. Exports are files saved to your own device, and they never contain your API key.
- Removing the extension from Chrome deletes all of its stored data.
7. Sharing and selling #
The developer does not collect, sell, rent, share or transfer your data to anyone, does not use it for advertising, creditworthiness or lending, and does not use it for any purpose unrelated to the features described above.
8. Children #
The extension is a market-research tool for adults and is not directed at children.
9. Legal basis and your rights #
The extension is built for people following the Indian phone market, so India's Digital Personal Data Protection Act, 2023 is the law most likely to apply to you. Because the developer never receives, stores or has access to any of your data, the developer does not process your personal data and has nothing to share, correct or erase on your behalf. The same is true under the GDPR and similar laws elsewhere.
Any personal data that the extension handles, such as the display names of people who commented on a YouTube video, is processed only on your own device, under your control, and is covered by the controls in section 6. You are responsible for how you use data you export.
Access to the third-party sites listed in section 3 is governed by their own policies, and any rights you have against them are exercised with them directly.
10. Changes to this policy #
If the extension's data handling changes, this page will be updated and the effective date above will change. Material changes will also be described in the extension's release notes. Every revision is listed below and in the repository's CHANGELOG.
- 10 November 2026 (extension v0.17.0)
- Launch Radar's on-device briefs are kept in this browser with the notes they were made from (one per launch, newest 30 launches), and are removed with Remove, when new notes make them out of date, or with the extension. The first-run tour opens once after installation, stores nothing and asks for no permission.
- 10 November 2026 (extension v0.12.1)
- Fetched YouTube results, and any on-device summary made from them, are now kept in the extension's local storage (the newest 6) until you clear them, instead of for the browser session only, so they survive closing Chrome. Added Clear Saved Results. Nothing is sent anywhere new.
- 9 November 2026 (extension v0.11.0)
- Section 2 lists the price floors, alert rules and launch dates that the Insights page saves (v0.11.0). Section 5 describes how Daily updates older than the 7 or 10 day window are merged instead of deleted (v0.10.0). Clarified that background tabs opened by Daily Tracking carry your normal site cookies. Added the legal basis section, an email contact, a table of contents and this revision history.
- 9 November 2026 (extension v0.9.1)
- Added the vivo India E-Store (shop.vivo.com) to the sites the extension reads.
- 8 November 2026 (extension v0.8.7)
- Retention limits now apply only to automatic Daily Tracking updates. Captures you save yourself are kept until you delete them.
- 8 November 2026
- First published.
11. Contact #
Questions or requests about this policy: email nandanpriyadarshi298@gmail.com, or open an issue at github.com/nandanosql/signal-intelligence-privacy/issues.