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Privacy Policy

Last updated: December 6, 2025

1. Introduction

STACK APP provides tools to help users understand their finances, track income, manage taxes, and automate savings. This Privacy Policy explains how we collect, use, store, and protect your information when you use our application and services. By using STACK APP, you agree to the practices described in this policy.

2. Information We Collect

2.1 Information You Provide

  • Name and email address
  • Account setup details
  • Preferences and settings within the app

2.2 Financial Account Information (Through Plaid)

When you choose to connect a bank or financial account, STACK APP uses Plaid to securely access:

  • Account balances
  • Account names and types
  • Transaction history
  • Income and expense data

STACK APP does not collect your bank login credentials. These are provided directly to Plaid and are never accessible to STACK APP. Plaid's privacy practices are available at: https://plaid.com/legal

2.3 Automatically Collected Information

We may collect limited usage data such as device type, browser type, IP address, and performance metrics to help improve the application.

3. How We Use Your Information

STACK APP uses your information only to:

  • Deliver financial insights, tax calculations, and budgeting tools
  • Sync financial data from Plaid
  • Display your account balances and transactions
  • Analyze spending and income patterns
  • Provide customer support
  • Maintain and improve the application
  • Ensure security and prevent fraud

We do not use your financial data for advertising.

4. How We Share Your Information

STACK APP does not sell your personal or financial information. We only share information with:

  • Plaid to securely access financial data
  • Cloud hosting providers that store encrypted application data
  • Service providers who help us operate the platform

All third party partners are required to use industry standard security and may not use your data for any purpose other than providing services to STACK APP.

5. Data Storage and Security

  • All data is encrypted in transit using TLS 1.2 or higher.
  • All data is encrypted at rest using industry standard encryption.
  • Access to production data is restricted and monitored.
  • Sensitive tokens and credentials are stored securely and never in plaintext.

Despite strong safeguards, no method of transmission or storage is completely secure. STACK APP takes reasonable steps to protect your information.

6. Your Rights and Choices

You may:

  • Access your data within the application
  • Request deletion of your account and data
  • Disconnect your financial accounts at any time
  • Update or correct your personal information

Requests may be submitted to: stackappjames@gmail.com

7. Data Retention

We retain data only as long as required to provide services or meet legal obligations. Please refer to the STACK APP Data Retention and Deletion Policy for full details.

8. Children's Privacy

STACK APP does not knowingly collect information from children under 13. If we discover that information has been collected from a child, we will delete it promptly.

9. Changes to This Policy

We may update this Privacy Policy as our services evolve. If significant changes occur, we will notify users by email or in the application.

10. Contact Information

For privacy related questions or requests, contact:

James Marino

Founder, STACK APP

Email: stackappjames@gmail.com