Privacy Policy
Stackd helps you find items worth reselling. This policy explains exactly what we collect, why we collect it, and who we share it with. We do not sell your personal information, and we do not use advertising or analytics trackers.
1. Who we are
Stackd ("Stackd", "we", "us") operates the Stackd mobile app and the websites at stackxd.com and app.stackxd.com. If you have questions about this policy or your data, contact us at privacy@stackxd.com.
2. Information we collect
We collect only what the product needs to work. Specifically:
| Data | Why we collect it |
|---|---|
| Email address | To create and sign you into your account. Handled by our authentication provider; your password is stored only as a salted hash and is never visible to us. |
| Subscription status | Your plan, its status, and a payment-processor customer ID, so we know whether your account has Pro access. |
| Search inputs | The categories, budget, platforms, and sizes you choose when you run a scan, so we can find matching listings and price them. |
| Saved flips & scan count | Stored locally on your own device, not on our servers. |
| Push token | Only if you enable notifications, so we can send alerts to your device. You can turn this off in your device settings at any time. |
| Basic server logs | Standard request logs (such as IP address and timestamp) generated by our hosting provider, used for security and debugging. |
What we do not collect
- We do not collect your card number. Payments are handled entirely by Stripe; card details never reach our servers.
- We do not use advertising SDKs, analytics SDKs, or cross-app tracking of any kind.
- We do not access your contacts, photos, camera, microphone, or precise location.
- We do not build advertising profiles or sell personal information to anyone.
3. How we use your information
- To create your account and keep you signed in.
- To run scans and return resale opportunities with verified pricing.
- To process subscription payments and unlock Pro features.
- To send you notifications you have opted into.
- To keep the service secure, prevent abuse, and fix bugs.
- To comply with legal obligations.
We do not use your data for automated decisions that produce legal or similarly significant effects about you.
4. Service providers we share data with
We share the minimum necessary data with the following providers, each acting on our behalf:
| Provider | Purpose & what it receives |
|---|---|
| Supabase | Account authentication and database. Receives your email and subscription status. |
| Stripe | Payment processing. Receives your payment details directly from you and returns only a customer reference to us. |
| Anthropic | AI analysis of listings. Receives your search inputs and public listing data — not your email or payment information. |
| eBay & SerpAPI | Retrieving public listings and completed-sale prices. Receive search terms only. |
| Render | Application hosting. Processes traffic and server logs. |
We may also disclose information if required by law, or to protect the rights, safety, and security of Stackd and its users. If Stackd is ever involved in a merger or acquisition, we will notify you before your information becomes subject to a different privacy policy.
5. Data stored on your device
Your saved flips, credit balance, and free-scan count are stored in your device's local storage. They stay on your device, are not transmitted to us, and are erased if you clear the app's data or uninstall the app.
6. How long we keep your data
We keep your account information for as long as your account is active. If you delete your account, we remove your account record and associated profile data within 30 days, except where we must retain certain records (such as payment and tax records) to meet legal obligations. Server logs are retained on a short rolling window by our hosting provider.
7. Your rights and choices
- Access and portability — request a copy of the personal data we hold about you.
- Correction — ask us to fix inaccurate data.
- Deletion — request deletion of your account and personal data.
- Withdraw consent — disable push notifications at any time in your device settings.
- Cancel anytime — manage or cancel your subscription from your account.
To delete your account and data, email privacy@stackxd.com from the address on your account. We will confirm and complete deletion within 30 days.
Depending on where you live, you may have additional rights under the GDPR (EEA/UK) or the CCPA/CPRA (California), including the right to object to processing and the right not to be discriminated against for exercising your rights. Stackd does not sell or share personal information as those terms are defined under California law. To exercise any right, contact us at the address above.
8. Children's privacy
Stackd is intended for users aged 13 and over. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with personal information, contact us at privacy@stackxd.com and we will delete it promptly. Users under the age of majority in their jurisdiction should review this policy with a parent or guardian, and should have permission before making any purchase.
9. Security
Traffic is encrypted in transit using TLS. Passwords are salted and hashed by our authentication provider and are never stored in plain text. Payment credentials are handled entirely by Stripe, a PCI-DSS Level 1 certified processor. No method of transmission or storage is perfectly secure, but we work to protect your information using industry-standard safeguards.
10. International transfers
Stackd is operated from the United States, and our service providers may process data in the United States and other countries. If you access Stackd from outside the U.S., you understand your information will be transferred to and processed in the U.S., where data protection laws may differ from those in your country. Where required, our providers rely on Standard Contractual Clauses for such transfers.
11. Not financial advice
Stackd surfaces publicly available listings and historical sale prices to estimate resale potential. These are estimates, not guarantees. Stackd does not provide investment or financial advice, and you are solely responsible for any buying or selling decisions you make.
12. Changes to this policy
We may update this policy from time to time. When we do, we will revise the "Last updated" date above, and for material changes we will provide a more prominent notice in the app. Continuing to use Stackd after an update means you accept the revised policy.
13. Contact
Questions, requests, or complaints: privacy@stackxd.com