Privacy Policy
Last updated: April 1, 2026
This Privacy Policy describes how DeckTrace ("we", "us", "our") collects, uses, and protects your personal information when you use the DeckTrace mobile application ("App").
1. Data Controller
DeckTrace is the data controller for the personal data processed through the App.
Contact: info@decktrace.com
2. Data We Collect
Information You Provide
- Email address — Account creation, authentication, communication
- Password — Account authentication (stored as a hash, never in plain text)
- Country — Localized pricing and shipping cost calculations
- Portfolio data — Products, quantities, purchase prices, sold prices, grading info
- Watchlist data — Target prices, alert preferences, grading filters
- Contact messages — Responding to your support requests
Information Collected Automatically
- Value snapshots — Recording daily portfolio value for historical charts
- Subscription status — Managing access to Pro features
- Device type (iOS/Android) — App functionality and subscription management
Information from Third Parties
- Apple / Google (via RevenueCat) — Subscription purchase and renewal events
- Google / Apple Sign-In (optional) — Name, email address for account creation via OAuth
3. How We Use Your Data
We use your personal data to:
- Provide and maintain the App's core functionality
- Calculate portfolio values using live marketplace pricing
- Send price alert notifications
- Process and manage subscriptions
- Respond to support requests
- Improve the App and fix issues
We do not use your data to sell to third parties, serve targeted advertisements, build advertising profiles, or make automated decisions that affect you.
4. Legal Basis for Processing (GDPR)
- Contract performance — Account data, portfolio data, watchlist data, subscription data
- Legitimate interest — Value snapshots, usage analytics for App improvement
- Consent — Marketing communications (if applicable), OAuth sign-in
5. Data Sharing & Third-Party Services
We share data with the following service providers, solely to operate the App:
- Supabase — All account and app data (EU — Frankfurt)
- RevenueCat — Anonymous user ID, subscription events (USA with EU data processing)
- Resend — Email address, message content (USA)
- Google (Gemini AI) — User-submitted prompts only (USA)
We do not share your portfolio data, watchlist data, or financial information with any third party.
6. Data Retention
- Account data, portfolio & watchlist data, value snapshots — until you delete your account
- Contact messages — 12 months after resolution
- Subscription records — as required by tax/legal obligations
When you delete your account, all associated data is permanently removed from our systems within 30 days.
7. Your Rights (GDPR)
Under the General Data Protection Regulation, you have the right to:
- Access — Request a copy of your personal data
- Rectification — Correct inaccurate personal data
- Erasure — Delete your personal data (available in-app)
- Restriction — Restrict processing of your personal data
- Portability — Receive your data in a structured, machine-readable format
- Objection — Object to processing based on legitimate interest
- Withdraw consent — Where processing is based on consent
To exercise these rights, contact us at info@decktrace.com. We will respond within 30 days.
8. Data Security
- All data is transmitted over HTTPS/TLS encryption
- Passwords are hashed and never stored in plain text
- Database access is secured with row-level security policies
- Authentication tokens are managed securely via Supabase Auth
- We conduct regular security reviews of our infrastructure
9. International Data Transfers
10. Children's Privacy
11. Cookies & Tracking
12. App Tracking & Advertising
- DeckTrace does not participate in cross-app or cross-website tracking
- We do not use the Apple IDFA or any equivalent advertising identifier
- We do not serve advertisements of any kind within the App
- No data collected by DeckTrace is used for advertising or marketing purposes by third parties
13. Apple Privacy Nutrition Labels
Data Not Used to Track You: DeckTrace does not track you. No data collected by the App is used for tracking purposes.
Data Linked to You: Email Address (Contact Info), Country (User Content), Purchase History (Purchases).
Data Not Linked to You: Portfolio data, Watchlist data, Value snapshots (User Content).
Data Not Collected: Precise/coarse location, physical address, phone number, health/fitness data, payment info, photos, videos, audio, gameplay content, browsing/search history, device ID, advertising identifier, contacts, SMS/call logs, or biometric data.
14. California Privacy Rights (CCPA)
If you are a California resident, you have additional rights under the CCPA:
- Right to Know — Request disclosure of collected data categories and sources
- Right to Delete — Request deletion of your personal information
- Right to Non-Discrimination — We will not discriminate against you for exercising CCPA rights
- DeckTrace does not sell your personal information
- DeckTrace does not share data for cross-context behavioral advertising
15. Changes to This Policy
16. Contact Us
For privacy-related questions or to exercise your rights:
Email: info@decktrace.com
Subject line: Privacy Request — [Your Request]