Privacy Policy

At StockAlert.pro, we take your privacy seriously. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our service. We are committed to protecting your personal data in compliance with the General Data Protection Regulation (GDPR) and other applicable data protection laws.

This policy applies to all information collected through our website (stockalert.pro), Chrome extension, dashboard, API, and any related services, sales, marketing, or events.

The data controller responsible for your personal data is:

Adanos Software GmbH
Käthe-Niederkirchner-Str. 30
10407 Berlin
Germany

Email: privacy@stockalert.pro

We use the following services to provide our platform:

• Supabase: For user authentication and database storage (hosted in the European Union)
• Vercel: For hosting and deployment (globally distributed edge network)
• Hetzner Cloud: For monitoring servers (hosted in Germany)
• Stripe: For payment processing and subscription management
• Telnyx: For sending SMS notifications
• Resend: For sending email notifications
• PostHog: For analytics (cookie-free implementation, hosted in the EU)

All our service providers are GDPR-compliant and have signed Data Processing Agreements (DPAs) with us.

4.1 Account Information

• Email address (required for account creation and communications)
• Password (encrypted using industry-standard algorithms)
• Phone number (optional, for SMS alerts)
• IP address and device information (for security and fraud prevention)

4.2 Alert Preferences

• Stock symbols and watchlists
• Alert conditions and parameters
• Notification preferences
• Alert history

4.3 Payment Information

Payment information is processed directly by Stripe and we do not store any credit card details. We only maintain records of subscription status, transaction history, and billing information for accounting purposes.

4.4 Usage Data

• Log data (access times, pages visited)
• Device information (browser type, operating system)
• Performance and error data

4.5 Chrome Extension

The StockAlert Chrome extension stores your API key in Chrome local storage. When you create an alert or update your watchlist, the extension sends the selected ticker, alert configuration, and API key only to api.stockalert.pro. If you enable ticker detection on a page, webpage text is scanned locally in your browser to find likely ticker symbols. Page contents and browsing history are not sent to StockAlert.pro. The extension does not include analytics, advertising, or remotely hosted code.

4.6 AI Assistants (ChatGPT, Codex, Claude and others)

You can connect an AI assistant to your StockAlert.pro account through our MCP server at stockalert.pro/mcp. You sign in with OAuth and grant the permissions the assistant asks for: reading or changing your alerts, and reading or changing your watchlist. Assistants can also connect with an API key you create.

When you ask the assistant for something, it calls our tools and we return the data that request needs:

• Alerts: ticker, alert type, threshold, settings, notification channel (email or SMS), status and dates
• Alert history: alerts that fired or changed, with ticker, price and time
• Watchlist: tickers, buy or sell intention, target price, your notes, AI signals and alert counts
• Market data: stock search results and latest prices

We never send your email address, phone number, password or payment details to an assistant.

If you ask ChatGPT to tell you in a chat when an alert fires, we send that alert's ID, ticker, alert type, a short summary and the time to the webhook address OpenAI gives us. ChatGPT then posts the message in that chat.

The provider of your assistant receives this data and processes it under its own privacy policy, for example OpenAI for ChatGPT and Codex, or Anthropic for Claude. You decide to connect the assistant; its provider does not act as our processor.

For each connection we store the assistant's name and redirect address, the permissions you granted, when you connected it and when it was last used, and hashed tokens. Access tokens expire after one hour and refresh tokens after 30 days. Subscriptions for chat notifications expire after seven days unless the assistant renews them, and never last longer than 30 days.

You can disconnect an assistant at any time on the Agents page of your dashboard (app.stockalert.pro/agents) or in the assistant's own settings. Its access and its chat notifications stop right away. Alerts and watchlist items the assistant created stay in your account, and conversations stored by the provider stay with the provider.

We process this data to carry out the requests you make through the assistant (Art. 6(1)(b) GDPR).

We process your personal data under the following legal bases:

• Contract: Processing necessary for the performance of our contract with you
• Consent: Processing based on your specific consent (e.g., for marketing communications)
• Legal Obligation: Processing necessary to comply with legal requirements
• Legitimate Interests: Processing necessary for our legitimate interests (e.g., improving our services)

• To provide and maintain our stock alert service
• To process your payments and manage subscriptions
• To send you alerts via email and SMS
• To communicate important service updates
• To improve our service based on usage patterns
• To prevent fraud and ensure security
• To comply with legal obligations
• To respond to your inquiries and support requests

6.1 SMS Notifications

When you add and verify your phone number in your account settings, you consent to receive SMS notifications from StockAlert.pro when your configured stock alerts trigger. By verifying your phone number, you expressly agree to receive these automated text messages.

• Message frequency: Varies based on the number and type of alerts you configure. Typically 0-10 messages per day during US market trading hours (9:30 AM - 4:00 PM ET, Monday-Friday). No messages are sent outside market hours unless you have configured time-based reminder alerts.
• Message and data rates may apply. Your carrier's standard messaging rates apply to all SMS notifications received.
• Opt-out: Reply STOP to any message to unsubscribe from all SMS notifications. You can also disable SMS alerts by removing your phone number in your account settings at Settings > Account Details.
• Support: For questions about SMS notifications, contact us at support@stockalert.pro.
• Your consent to receive SMS is not a condition of purchase. You can use our service with email-only notifications.

We use Telnyx as our SMS service provider. Your phone number is shared with Telnyx solely for the purpose of delivering SMS notifications. Telnyx's privacy policy is available at telnyx.com/privacy-policy.

We retain your personal data only for as long as necessary to fulfill the purposes for which it was collected, including:

• Account data: As long as your account is active
• Alert history: 12 months for active accounts
• Payment records: As required by tax laws (typically 10 years)
• Usage logs: 30 days
• AI assistant connections: until you disconnect them. Tokens and chat notification subscriptions expire as described in 4.6.

After account deletion, we retain certain data as required by law or for legitimate business purposes, such as fraud prevention.

Your data is stored securely across our infrastructure, which uses:

• End-to-end encryption for sensitive data
• Regular security audits and updates
• Industry-standard database security practices
• Regular backups to prevent data loss
• Access controls and authentication mechanisms
• Network security monitoring

Our services involve data processing in various locations worldwide. We ensure appropriate safeguards are in place through:

• EU Standard Contractual Clauses
• Data Processing Agreements
• Privacy Shield certification (where applicable)

Our main database is hosted by Supabase in the European Union, and our website is served through Vercel's global edge network. All data transfers comply with EU data protection requirements.

Under GDPR and other applicable laws, you have the right to:

• Access your personal data
• Correct inaccurate data
• Request deletion of your data (right to be forgotten)
• Restrict or object to processing
• Data portability (export your data)
• Withdraw consent for processing
• Lodge a complaint with a supervisory authority

To exercise these rights, please contact us at privacy@stockalert.pro. We will respond to your request within 30 days.

We only use technically necessary (essential) cookies that are required for the operation of our service. According to Article 5(3) of the ePrivacy Directive, these essential cookies do not require explicit consent. We use them for:

• Authentication and session management (to keep you logged in)
• Security measures (CSRF protection, fraud prevention)
• Remembering basic preferences (language, theme)

We do not use any marketing, tracking, or analytics cookies. The essential cookies we use are:

• supabase-auth: Authentication session cookie
• csrf-token: Security token to prevent cross-site request forgery

For analytics, we use PostHog with a cookie-free implementation. Our PostHog configuration:

• Does not use cookies for tracking
• Does not store persistent identifiers in your browser
• Only tracks anonymous usage data during your current session
• Only creates user profiles when you explicitly identify yourself (e.g., by logging in)
• Hosted in the EU to ensure GDPR compliance

While you can control cookies through your browser settings, please note that our service requires these essential cookies to function properly. Disabling them will prevent you from using our service.

Our service is not intended for children under 13, and we do not knowingly collect their personal data. Users aged 13 to 17 need the consent of a parent or legal guardian. If you believe a child under 13 has given us personal data, contact us and we will delete it.

We may update this privacy policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the "Last updated" date. Significant changes will be communicated directly to users via email.

For any privacy-related questions, requests, or complaints, please contact our Data Protection Officer at:

Email: privacy@stockalert.pro

Postal Address:
Adanos Software GmbH
Käthe-Niederkirchner-Str. 30
10407 Berlin
Germany