The short version: WristSignal analyzes public watch listing data to help you make informed buying decisions. We collect only what is necessary to deliver the service. We do not sell your data, track your browsing history, or share your information with advertisers.
WristSignal ("WristSignal," "we," "us," or "our") is a watch market analysis tool operated as a Chrome browser extension and associated web service. Our website is wristsignal.com and our API runs at api.wristsignal.com. For privacy inquiries, contact us at privacy@wristsignal.com.
When you visit a supported marketplace (eBay, Chrono24, Reddit r/WatchExchange), the extension reads the following from the current page:
This data is read only on supported watch marketplace pages and only to generate a market signal for that specific listing. It is sent to our API over HTTPS and is not stored on your device beyond the current browser session.
The extension does not read your browsing history, access other tabs, read form inputs, or operate on any pages outside of the supported marketplaces listed in its permissions.
When you trigger a market check, the following data is sent to our servers:
We log this data to a database for the purpose of improving signal accuracy, monitoring for abuse, and generating aggregate market statistics. Logs may be retained for up to 12 months.
Anonymous usage analytics. To understand how the product is used — for example, how many installs go on to view a signal, or reach the report screen — the extension records a small set of anonymous, aggregate usage events (such as "a signal was viewed" or "the report button was shown"). These events carry no personal information: no name, no email, and no listing content. Each install generates one random identifier (a UUID, not derived from you or your device) that lets us count these events in aggregate and measure repeat usage. It is not linked to your identity and is never sold or shared with advertisers. You can reset it at any time by removing and reinstalling the extension.
We do not log your IP address in association with listing data, and we do not build advertising profiles or identify you personally.
When you purchase a full market report, the checkout flow is handled by Stripe. WristSignal receives confirmation of payment and the listing parameters needed to generate the report. We do not store full credit card numbers or billing addresses. Stripe's privacy policy governs all payment data.
Your email address is collected by Stripe at checkout and used solely to deliver your report. We do not add you to marketing lists without explicit consent.
Deal alerts and collection tracking. If you create a deal alert or add a watch to your collection from the extension sidebar (or on our website), you provide your email address directly to WristSignal. We store it — along with the reference numbers, target prices, and watch details you enter — in our database solely to send you the price-drop alerts and monthly collection summaries you requested. We do not use it for unrelated marketing.
These features are optional and email-based — no account or password is created. Every alert and summary email includes a one-click link to cancel the alert or stop the emails, and you may request deletion at any time by emailing privacy@wristsignal.com.
WristSignal retrieves pricing data from public sources including eBay's Browse API, Reddit's public JSON API, and WatchUSeek's public classifieds. We access only publicly available listing data. No user accounts or credentials are required or used on your behalf on these platforms.
The WristSignal website uses no tracking cookies. Our extension does not use cookies. We use Chrome's storage.local API to store the extension's install date for internal diagnostics, a random anonymous identifier used only for the aggregate usage analytics described in Section 3, any active report pass, and — if you use deal alerts or the collection tracker — the email address you entered, kept locally on your device only to pre-fill it next time. Anything stored in storage.local stays on your device and can be cleared at any time by removing the extension or clearing your browser data.
We use the following third-party infrastructure to operate WristSignal:
We do not sell, rent, or trade your personal data to any third party. We may share data with third parties only in the following circumstances:
WristSignal is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has submitted information to us, contact us at privacy@wristsignal.com and we will delete it promptly.
You may request deletion of any personal data we hold associated with a specific listing submission or report purchase by emailing privacy@wristsignal.com. Because we do not create persistent user accounts, identification is done by matching the email address provided at checkout or specific listing details you provide.
If you are located in the European Economic Area or the United Kingdom, you have additional rights under GDPR/UK GDPR including the right to access, rectify, erase, or port your data, and to lodge a complaint with your local supervisory authority.
All data in transit between the extension and our API is encrypted using HTTPS/TLS. Our database is access-controlled and not publicly exposed. We apply reasonable technical and organizational measures to protect data against unauthorized access, loss, or misuse.
We may update this privacy policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. Material changes will be noted in the extension's release notes. Continued use of WristSignal after changes are posted constitutes acceptance of the updated policy.
For any privacy-related questions or requests, contact us at privacy@wristsignal.com.
You may also reach us by mail at:
WristSignal
421 Broadway, Unit #540
San Diego, CA 92101
United States