PriceGate Privacy Policy

Last updated: October 23, 2026

PriceGate (formerly PriceSentry).

Overview

PriceGate is a browser extension that helps you track product prices across a range of online stores, including Amazon (16 international marketplaces, including Amazon.ae), Sharaf DG, Zara, H&M, IKEA, Home Centre, Kibsons, Brands For Less, iHerb, and 6th Street. This privacy policy explains what data we collect, how we use it, and your rights regarding your personal information.

Data We Collect

1. Product Information

Product URLs you choose to track, from the supported stores
Product titles, prices, and availability
Price history over time
Product variations (size, color, etc.)

Purpose: To track prices and show you price history charts.

2. Crowdsourced Price History (Community Data)

How it works: When you are signed in and track or view a product, the observed price data is contributed to our shared community database. This crowdsourced model means all users benefit from richer historical price data. If you use PriceGate locally without an account, no price data is contributed.

Data contributed:

Price points with timestamps
Product identifiers (for example ASIN or a per-store canonical key, marketplace/store)
contributed_by field: your account identifier (user ID), stored on our servers with the contribution
source field: how the data was collected (page_visit or background)

Purpose: To provide comprehensive historical price data for products, even those you have not personally tracked. The more users contribute, the better the price history for everyone.

What other users see: The community price history and deal feed are aggregated. Your identity, email, and account are never shown to other users. The contributed_by identifier is your real account ID kept on our servers (so we can operate the Service, prevent abuse, and delete your data on request); it is not a random anonymous token, and it is never exposed in the community feed or any public response. Under data-protection law this is pseudonymous data (linkable to you on our servers), not anonymous data. Contribution is automatic for signed-in users and there is not currently a separate opt-out toggle; to avoid contributing entirely, use PriceGate without an account.

3. Source Tracking

We track how price data is collected:

page_visit: Data collected when you visit a supported product page
background: Data collected during automated background checks

Purpose: To understand data freshness and optimize collection methods.

4. Account Information (Optional)

If you choose to create an account for cloud sync:

Email address
Your password, stored only as a secure one-way hash (we never store or see it in plain text)
Unique referral code (6 characters)

Purpose: To sync your tracked products across devices and enable social features.

5. Google OAuth (Optional)

If you sign in with Google:

Email address from your Google profile
Name (if provided by Google)
OAuth tokens (securely stored)

Purpose: To provide a convenient sign-in method without creating a separate password.

Note: We never receive your Google password. You can revoke access anytime via your Google Account settings.

6. User Preferences

Check interval settings
Notification preferences
Display settings
Alert thresholds (target prices, percentage drops)

Purpose: To customize the extension to your preferences.

7. Product Sharing Data

PriceGate offers two ways to share a deal:

Quick share (WhatsApp, Telegram, copy link/image): These open a prefilled message in the app you pick, or copy content to your clipboard. No account is needed and PriceGate's servers are not involved, so we do not collect anything for these.
Email share to a friend (requires an account): processed through our backend, which stores the data below.

For email shares we store:

Sender's email address (visible to recipient)
Recipient's email address (entered by sender)
Shared product details (identifier, title, price, thumbnail, URL)
Share status (pending, delivered, archived)
Quantity requested, and any optional note

Purpose: To enable sharing products with friends and family.

Rate limits: Maximum 10 email shares per day to prevent spam.

8. Friend Invites

If you invite friends to install PriceGate:

Recipient's email address
Invitation status and timestamp
Your email (visible in invitation)

Purpose: To help you invite friends to use PriceGate.

Rate limits: Maximum 5 invites per day. Duplicate invites prevented for 30 days.

9. Referral Codes & Friendships

Your unique 6-character referral code
Friends list (bidirectional connections via referral codes)
Friend email addresses (visible to connected friends only)

Purpose: To enable friend connections and product sharing.

10. Badge Progress (Gamification)

Badge unlock timestamps
Progress counters (products tracked, products viewed, deals found, days active)
Recently viewed product identifiers (last 100, for the Explorer badge)
First discovery flags

Purpose: To track your achievements and provide a rewarding experience.

11. What You Paid (Amazon Order History)

To show whether you got a good price, the extension reads your Amazon order history and order detail pages when you open them, or when you click "Fetch my prices" (which opens your order history in a background tab). From those pages it records, per product:

Product identifier (ASIN) and title
Price you paid, currency, and quantity
Order date, Amazon order number, and the return-by date when Amazon shows one

It does not record payment details, addresses, or invoices.

Where it is stored: locally in your browser (Chrome extension storage). It is synced to PriceGate's servers only if you have cloud sync enabled. It is never sold or shared with anyone.

Purpose: To show "what you paid" on product pages and, if you keep the setting on, alert you when something you bought gets cheaper while it can still be returned. You can turn the alert off in Settings, and removing the extension deletes this data.

12. Affiliate Click Data

PriceGate is free and shows no ads. Some links to stores may be affiliate links (see the Terms of Service, Section 8). When affiliate links are enabled and you click one, we may record:

Which store and which surface in the extension the click came from
Which affiliate network was used (for example Amazon Associates, Admitad, ArabClicks)
Your account ID, if you are signed in
A timestamp

Purpose: To measure whether affiliate links work and to support the free Service. Affiliate commissions never change the price you pay.

13. Diagnostic / Parser Health Data

To detect when a store changes its website and breaks price reading, the extension records lightweight technical signals, for example that the price could not be parsed on a given store, with no product or personal content. Signed-in users' health signals may be stored in the cloud to help us spot and fix broken stores quickly.

Purpose: Reliability and troubleshooting.

14. Security & Abuse-Prevention Logs

For certain account and security-sensitive actions, our backend keeps an audit log that may include your account ID, the action taken, your IP address, and your browser's user agent string.

Purpose: To protect accounts, prevent abuse, and maintain a security trail. Our legal basis for this logging is our legitimate interest in keeping the Service and its users secure, and, where applicable, compliance with law.

15. Terms & Privacy Acceptance Records

When you accept our Terms of Service and Privacy Policy, we record:

Your user ID and the terms version accepted
Timestamp of acceptance
Whether you clicked the Terms of Service and/or Privacy Policy links (and when)
Your browser's user agent string

Purpose: To maintain a legal audit trail proving informed consent, and to comply with GDPR and other privacy regulations that require demonstrable proof of user consent.

Note: If we update our terms, you will be asked to review and accept the new version. Previous acceptance records are retained as historical audit evidence.

How We Store Data

Local Storage: All tracking data is stored locally in your browser by default using IndexedDB. We store only the product details and prices we need, never full copies of the pages you visit.
Cloud Storage (Optional): If you sign up, data is stored in Supabase (a secure cloud database) and protected by Row Level Security (RLS) so only you can access your private data. Shared community price data can only be read or written through our own server functions, not directly.

Data Isolation

Your personal product list is private to you
Crowdsourced price history is aggregated and is not shown against your identity to other users
RLS policies ensure users cannot access other users' private data
Friends can only see each other's email addresses (not tracked products)

Data We Do NOT Collect

Personal financial information
Credit card or payment details
Browsing history outside of the supported stores' product pages and your Amazon order pages (used only for What You Paid, above)
Keystrokes or mouse movements
Your store account credentials (for example your Amazon password)
Personal identifying information beyond email (for accounts) and the security logs described above
Your Google password (when using Google sign-in)

Third-Party Services

Supabase: Cloud database, authentication, and shared price history. See Supabase Privacy Policy.
Google OAuth: Optional sign-in via Google. See Google Privacy Policy.
Resend: Email delivery for friend shares and invites. See Resend Privacy Policy.
Affiliate networks (Amazon Associates, Admitad, ArabClicks): When affiliate links are enabled, clicks may pass through these networks. Each has its own privacy practices.
Currency exchange rate API (open.er-api.com): Used to convert prices between currencies; requests do not include your identity.
Chrome Extensions APIs: Storage, alarms, notifications, identity (for OAuth).
WhatsApp / Telegram: Contacted only when you choose to quick-share; we send them nothing ourselves, your browser simply opens their share link.

Data Sharing

We do NOT:

Sell your data to third parties
Share your data with advertisers
Use your data for profiling or targeting
Share individual user data with other users (except email with connected friends)

We DO share:

Aggregated price history for the benefit of all users, without showing your identity
Your email with friends you connect with via referral codes
Product details with recipients when you share items

Data Retention

Local data: Stored until you uninstall the extension or clear it manually
Cloud data: Stored until you delete your account
Crowdsourced price history: Retained for community benefit; the linked contributed_by account reference is removed or dissociated when you delete your account
Old alerts: Auto-cleaned after 14 days
Invitations: Deduplicated for 30 days
Terms acceptance records: Retained indefinitely as legal audit evidence (all versions preserved)

Your Rights

You can:

Export your data anytime (Settings → Export)
Delete local data (Settings → Clear Data)
Delete your cloud account (Settings → Account → Delete Account)
Opt out of cloud sync and community contribution by not creating an account
Remove friends from your friends list
Revoke Google access via Google Account settings

Data Portability

Export includes:

All tracked products
Price history
User settings

Account Deletion

To delete your cloud account and all associated data:

Go to Settings → Account
Click "Delete Account"
Confirm deletion

Or email support@pricegate.app.

GDPR Compliance (European Users)

If you are located in the European Economic Area (EEA) or United Kingdom, you have additional rights under the General Data Protection Regulation (GDPR):

Legal Basis for Processing

Consent: For optional features like cloud sync, sharing, and Google sign-in
Legitimate Interest: For core functionality (local price tracking), service improvement, security and abuse prevention, and supporting the free Service through affiliate links
Contract: To provide the service you requested
Legal Obligation: For maintaining records of consent (terms acceptance audit trail)

Your GDPR Rights

Right to Access: Request a copy of your personal data
Right to Rectification: Correct inaccurate personal data
Right to Erasure: Request deletion of your personal data
Right to Data Portability: Receive your data in a portable format (JSON export)
Right to Object: Object to processing based on legitimate interest
Right to Restrict Processing: Limit how we use your data
Right to Withdraw Consent: Withdraw consent at any time

Data Controller

PriceGate is operated by its individual developer, who is the data controller for the personal data described in this policy. For any privacy or data-protection request (access, correction, deletion, or objection), contact us by opening an issue at support@pricegate.app. If you need a private channel or a named contact for a formal data-protection request, ask via that link and we will provide one.

International Data Transfers

Our cloud data is hosted on Supabase infrastructure that may be located outside the European Economic Area (currently in the Asia-Pacific region). Where your data is transferred outside the EEA or the UK, we rely on appropriate safeguards such as the European Commission's Standard Contractual Clauses, together with the safeguards Supabase provides as our processor. You can ask us for more information about these transfers using the contact above.

No Automated Decision-Making

We do not use your data for automated decision-making or profiling that produces legal effects.

CCPA Compliance (California Users)

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):

Your CCPA Rights

Right to Know: Request what personal information we collect, use, and disclose
Right to Delete: Request deletion of your personal information
Right to Opt-Out of Sale: We do NOT sell your personal information
Right to Non-Discrimination: We will not discriminate against you for exercising your rights

Categories of Personal Information Collected

Identifiers (email address, account ID)
Internet or network activity (product URLs tracked, price data, affiliate link clicks)
Geolocation (marketplace/region inferred from the store domain)
Device and connection information (IP address and user agent string, collected for security logs and at terms acceptance)

Sources of Personal Information

Directly from you (account creation, product tracking)
From third parties (Google OAuth profile information)
Automatically (price data from store pages, security logs)

Business Purpose for Collection

Providing the price tracking service
Enabling cloud sync and social features
Security and abuse prevention
Supporting the free Service through affiliate links
Improving the service through aggregated analytics

No Sale of Personal Information

We do NOT sell, rent, or trade your personal information to third parties for monetary or other valuable consideration.

Contact for CCPA Requests

Submit requests via GitHub issues. We will respond within 45 days.

Security

All cloud data is protected by Row Level Security (RLS)
Passwords are encrypted using industry-standard hashing
API communications use HTTPS
OAuth tokens are securely stored
The extension uses minimal permissions required for functionality

Contact

For questions about this privacy policy, please open an issue at: support@pricegate.app

Changes

We may update this policy occasionally. Significant changes will be noted in the extension update notes and this document will be updated with a new "Last updated" date.

Technical Appendix

Data Fields Stored

Field	Stored Locally	Stored in Cloud	Shared/Visible
Product URL	Yes	Yes	No
Product title	Yes	Yes	Yes (in shared items, community history)
Current price	Yes	Yes	Yes (aggregated, no identity)
Price history	Yes	Yes	Yes (aggregated, no identity)
`contributed_by`	No	Yes	No (account ID, server-side only)
`source`	Yes	Yes	Yes
User email	No	Yes	Visible to friends only
Alert settings	Yes	Yes	No
What you paid (Amazon orders)	Yes	Only if sync is enabled	No
Referral code	No	Yes	Shareable by user
Friends list	No	Yes	Visible to connected friends
Badge progress	Yes	Yes	No
Shared items sent	No	Yes	Visible to recipient
Shared items received	No	Yes	Visible to sender
Invite history	No	Yes	No
Viewed product IDs (badges)	Yes	Yes	No
Affiliate click log	No	Yes	No
Parser health signals	Yes	Yes (if signed in)	No
Security audit log (account ID, IP, user agent)	No	Yes	No
Terms acceptance timestamp	No	Yes	No
Terms version accepted	No	Yes	No
Link click timestamps	No	Yes	No
User agent (acceptance + security logs)	No	Yes	No