Privacy Policy - WindowSill

This Privacy Policy describes Our policies and procedures on the collection, use and disclosure of Your information when You use the Application, Website, or Service and tells You about Your privacy rights and how the law protects You. The Application maintains local Usage Data for performance monitoring and improvement purposes only. By using the Service, You agree to the handling of information in accordance with this Privacy Policy.

1. Interpretation and Definitions

1.1 Interpretation

The words of which the initial letter is capitalized have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in singular or in plural.

1.2 Definitions

For the purposes of this Privacy Policy:

You means the individual accessing or using the Application, Website, or Service, or the company, or other legal entity on behalf of which such individual is accessing or using the Application, Website, or Service, as applicable.
Developer (referred to as either "the Developer", "We", "Us" or "Our" in this Agreement) refers to WindowSill's owner and development team.
Application or App refers to the WindowSill software application for Windows devices.
Website refers to WindowSill's website, accessible from https://getwindowsill.app
Service refers to the Application and Website collectively.
Country refers to: Washington, USA.
Extensions means third-party software components that enhance or extend the functionality of the Application.
WindowSill+ refers to premium features, subscriptions, or licenses available for the Application.
Microsoft Store refers to Microsoft's digital distribution platform for Windows applications.
AI Service Providers means third-party artificial intelligence service providers such as OpenAI, Anthropic, or other AI companies whose services are integrated with the Application.
Service Provider means any natural or legal person who processes the data on behalf of the Developer. It refers to third-party Service Providers or individuals who facilitate the Service, provide the Service on behalf of the Developer, perform services related to the Service, or assist the Developer in analyzing how the Service is used.
Personal Data is any information that relates to an identified or identifiable individual.
Non-Personal Data is any information that does not relate to an identified or identifiable individual.
Device means any device that can access the Service such as a computer, cellphone, or digital tablet.
Usage Data refers to data stored locally on Your Device, generated by the use of the Application (for example, the duration that the Application takes to start). This data is not transmitted to the Developer.

2. Information We Collect

2.1 Local Usage Data and Performance Information

The Application maintains local Usage Data and performance information solely on Your Device for the purpose of Application performance monitoring and reliability. This local data is not uploaded or transmitted to the Developer and includes:

Application crash reports and error logs (stored locally only)
Performance metrics (startup time, memory usage, response times)
Feature usage statistics (which features are used and how often)
Device information (operating system version, hardware specifications)

Important: The Developer does not collect, upload, store, or transmit any data from the Application. All Usage Data remains local on Your Device. The Developer does not collect any Personal Data, including Your files, clipboard content, text You type, or any personally identifiable information.

2.2 Website Analytics

The Website may use standard web analytics tools to understand how visitors interact with the Website. This helps the Developer improve the Website experience and includes Non-Personal Data such as page views, referral sources, and general geographic regions. This is separate from the Application and applies only to Website usage.

3. Third-Party AI Services

The Application integrates with various AI Service Providers to offer text assistance features. When You use AI-powered features, Your text may be sent to these third-party AI Service Providers for processing:

OpenAI: Subject to OpenAI's Privacy Policy
Anthropic: Subject to Anthropic's Privacy Policy
WindowSill AI: This provider relies on OpenAI models. The WindowSill AI service does not keep any personal information. However, since it relies on OpenAI, the use of WindowSill AI is subject to OpenAI's Privacy Policy
Other AI Service Providers: Each AI Service Provider maintains their own privacy policies, which are clearly listed within the Application

Note: You can also use local AI models for enhanced privacy. When using local models, Your data never leaves Your Device.

4. Extensions

The Application supports third-party Extensions that may enhance its functionality. From a privacy perspective:

4.1 Extension Data Handling

Extensions operate independently from the Application and may have their own data collection, processing, and privacy practices. The Developer has no control over or visibility into:

What data Extensions may collect from You or Your Device
How Extensions process or store Your information
Whether Extensions transmit data to external servers
Extension compliance with privacy laws and regulations

Important Privacy Notice: Each Extension may have its own privacy policy and data handling practices. The Developer strongly recommends reviewing each Extension's privacy policy before installation and use.

4.2 Developer's Responsibility Regarding Extensions

The Developer does not:

Monitor or control Extension data collection practices
Have access to data collected by Extensions
Validate Extension privacy policies or practices
Accept responsibility for Extension privacy violations
Provide support for Extension-related privacy issues

4.3 Your Privacy Rights with Extensions

When using Extensions, You should:

Review each Extension's privacy policy before installation
Understand what permissions and data access Extensions require
Contact Extension developers directly for privacy-related concerns
Remove Extensions if You are uncomfortable with their privacy practices
Monitor Extension behavior and data usage on Your Device

5. Microsoft Store Integration

The Application is distributed through the Microsoft Store. Microsoft handles all purchase transactions, subscription management, and payment processing for WindowSill+ subscriptions and lifetime licenses. The Developer does not have access to Your payment information or Personal Data from Microsoft Store purchases.

For subscription management, refunds, or billing inquiries, please refer to:

6. Data Security

Since the Application maintains data locally on Your Device only, the following security measures apply:

Local Usage Data is stored securely on Your Device using standard file system protections
No data is transmitted from the Application to external servers
The Developer has no access to Your local Usage Data
No Personal Data is collected or stored anywhere by the Application

Note: This section applies only to the Application. Extensions and AI Service Providers may have different security practices over which the Developer has no control.

7. Data Retention

Local Usage Data and performance information are stored on Your Device according to the Application's internal data management policies. Since this data never leaves Your Device, You maintain full control over it through standard file system operations. The Developer does not have access to this data and does not maintain any external copies.

Note: Extensions may have their own data retention policies that are independent of the Application. Please consult individual Extension privacy policies for their data retention practices.

8. Your Rights and Choices

Regarding local data management, You have the following options:

Local Data Control: Since all Usage Data is stored locally on Your Device, You have full control over this data through Your Device's file system
Local AI Only: Choose to use only local AI models to ensure all AI processing remains on Your Device
Telemetry Management: Currently, the Application's local telemetry system does not have a disable option, but no data is transmitted externally
Extension Control: You can install, uninstall, or disable Extensions at any time through the Application's settings
Contact Developer: Contact the Developer if You have questions about the Application's data handling

Extensions Privacy: For privacy choices related to Extensions, You must contact each Extension developer directly. The Developer cannot control or modify Extension privacy settings.

9. Children's Privacy

The Application does not knowingly collect Personal Data from children under 13. If You are a parent or guardian and believe Your child has provided the Developer with Personal Data through the Application, please contact the Developer immediately.

Extensions Warning: Extensions may have different age restrictions and privacy practices regarding children. Parents should review each Extension's privacy policy before allowing children to use them.

10. Changes to This Policy

The Developer may update this Privacy Policy from time to time. The Developer will notify users of any material changes through the Application or on the Website. Your continued use of the Service after changes become effective constitutes acceptance of the updated policy.

11. Contact Information

If You have any questions about this Privacy Policy or the Developer's privacy practices, please contact the Developer:

Email: support@getwindowsill.app
Discord: Join our Discord community

Extension Privacy Questions: For privacy questions related to specific Extensions, please contact the Extension developers directly. The Developer cannot provide support for Extension privacy matters.

12. Governing Law

This Privacy Policy is governed by and construed in accordance with the laws of the jurisdiction where the Application is developed and maintained.

For the most up-to-date version of this Privacy Policy, please visit the Website regularly.