Privacy Policy

Stock Alert · Last updated June 14, 2026

Stock Alert ("we", "our", "the app") is a Shopify app that monitors inventory levels and sends notifications to store owners. This policy explains what data we collect, how we use it, and your rights.

1. Data We Collect

Store information — your Shopify shop domain, access token, and account email, obtained via Shopify OAuth when you install the app.
Product and inventory data — product titles, SKUs, and inventory quantities synced from your Shopify store to power alert calculations.
Notification settings — email addresses and Slack webhook URLs you provide for receiving alerts.
Alert history — a log of notifications sent, including product name, alert type, and timestamp.
Back-in-stock subscribers — email addresses collected via the optional storefront widget from customers who opt in to restock notifications. These are collected with customer consent and are used solely to send a single restock email per product.
Order data (read-only) — aggregate sales counts from your last 30 days of orders, used only to calculate stock-out prediction ("days remaining"). Individual order details are not stored.

2. How We Use Your Data

To monitor your inventory and send low-stock, out-of-stock, and restock alerts.
To calculate stock-out predictions and reorder dates.
To send digest email summaries and back-in-stock notifications to subscribed customers.
To display analytics about your alert history within the app.

We do not sell, rent, or share your data with third parties for marketing purposes.

3. Data Storage and Security

Data is stored in a PostgreSQL database hosted on Supabase (EU West region). Access tokens are encrypted at rest. We use HTTPS for all data in transit. Access to the database is restricted to application servers only.

4. Data Retention

Your data is retained for as long as your store has the app installed. When you uninstall Stock Alert, Shopify sends us a shop/redact webhook within 48 hours, which permanently deletes all your store data from our systems — including settings, product tracking records, alert history, and back-in-stock subscribers.

5. Third-Party Services

Shopify — the platform through which you authenticate and from which we read inventory and order data. Subject to Shopify's Privacy Policy.
Supabase — database hosting. Subject to Supabase's Privacy Policy.
Fly.io — application hosting. Subject to Fly.io's Privacy Policy.
SMTP provider — used to deliver email notifications. Email addresses are passed to our email provider only for the purpose of sending notifications.
Slack — if you configure Slack notifications, alert payloads are sent to the webhook URL you provide. We do not store Slack workspace data.

6. GDPR and Your Rights

If you or your customers are in the European Economic Area (EEA), you have the right to:

Access the personal data we hold about you.
Request correction or deletion of your data.
Object to or restrict processing of your data.
Data portability — receive your data in a structured format.

We comply with Shopify's mandatory GDPR webhooks:customers/data_request, customers/redact, and shop/redact. Back-in-stock customer emails are collected with explicit opt-in consent and can be deleted at any time via the unsubscribe link in each notification email or by contacting us.

7. Children's Privacy

Stock Alert is intended for use by Shopify merchants (businesses). We do not knowingly collect data from individuals under 16 years of age.

8. Changes to This Policy

We may update this policy from time to time. The "last updated" date at the top of this page will reflect any changes. Continued use of the app after changes constitutes acceptance of the updated policy.

9. Contact

For privacy-related questions or data requests, contact us at: nazmul291@gmail.com