Privacy Policy

Last updated: April 13, 2026

1. Introduction

Welcome to Fountain Pen Identifier (“we,” “our,” or “us”). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and website (collectively, the “Service”). Please read this Privacy Policy carefully.

2. Information We Collect

2.1 Personal Information

When you create an account, we may collect your name, email address, and profile picture through Google Authentication. We do not collect or store your Google password.

2.2 Images and Identification Data

When you use our identification feature, we collect the photographs you submit of fountain pens. These images are processed by our AI system to generate identification results. Images and their associated identification results may be stored on our servers.

2.3 Usage Data

We automatically collect certain information about your device and usage of the Service, including device type, operating system, unique device identifiers, IP address, browser type, and usage patterns through Firebase Analytics.

3. AI Data Processing

Our Service uses artificial intelligence (AI) and machine learning technologies to identify fountain pens from photographs. When you submit an image for identification:

  • Your image is sent to our AI processing system for analysis.
  • The AI generates identification results including brand, model, specifications, estimated value, and other details.
  • AI-generated results are estimates and may not be 100% accurate. They should not be used as the sole basis for purchasing or valuation decisions.
  • We may use anonymized identification data to improve our AI models and the accuracy of our Service.
  • Images submitted for identification may be processed by third-party AI service providers under strict data processing agreements.

4. How We Use Your Information

  • To provide and maintain our Service
  • To process fountain pen identifications
  • To manage your account and preferences
  • To display community identifications in our gallery
  • To improve our AI identification accuracy
  • To send you service-related communications
  • To monitor and analyze usage patterns
  • To detect and prevent fraud or abuse

5. Data Sharing and Disclosure

We do not sell your personal information. We may share your information with:

  • Service Providers: Third-party companies that assist us in operating our Service (e.g., Firebase, cloud hosting, AI processing).
  • Community Gallery: If you choose to make your identifications public, they may be visible to other users in our community gallery.
  • Legal Requirements: When required by law or to protect our rights.

6. Data Security

We implement appropriate technical and organizational security measures to protect your personal information. However, no method of transmission over the Internet or electronic storage is 100% secure.

7. Data Retention

We retain your personal information for as long as your account is active or as needed to provide you with our Service. You may request deletion of your account and associated data by contacting us.

8. Your Rights

Depending on your jurisdiction, you may have the right to:

  • Access your personal information
  • Correct inaccurate data
  • Request deletion of your data
  • Object to processing of your data
  • Data portability
  • Withdraw consent

9. Children's Privacy

Our Service is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the “Last updated” date.

11. Contact Us

If you have any questions about this Privacy Policy, please contact us through the app or our website.