Privacy Policy
Effective Date: March 13, 2026
At Plain Flashcards, we believe that your data belongs to you. Our app is designed to prioritize local storage on your device, ensuring that your study materials and personal habits remain as private as possible.
1. Data We Do NOT Collect
- Permanent Flashcard Storage: Your primary study content is stored exclusively on your device. We do not maintain persistent servers that sync or store your flashcard libraries.
- Personal Identity: We do not require a login. We do not collect your name, email address, or physical location.
2. AI Flashcard Generation
When you use our AI-powered flashcard generation feature, the files or text you provide are processed to create study materials:
- Processing: Content is sent to our backend and processed by the Gemini API (Google) to generate flashcards.
- Temporary Storage: To facilitate processing, files are stored temporarily in Amazon Web Services (AWS) S3. These files are transient and are automatically deleted shortly after the generation process is complete.
- Data Use: We do not use your submitted content for any purpose other than generating your requested flashcards.
Note: Please avoid uploading files containing sensitive personal, financial, or private health information for AI generation.
3. Information We Collect
To provide a stable experience, we use limited third-party services that collect pseudonymous data:
- Usage Analytics (Google Analytics): We collect anonymized interaction data (e.g., "Study Session Started"). This is not linked to your identity.
- Crash Reporting (Firebase Crashlytics): Technical reports are sent during crashes to help us fix bugs. These contain no personal content.
- Purchases (RevenueCat): We use a random device identifier to manage your subscription status. Payment details are handled entirely by Apple.
4. Translation Services
Our translation feature is powered by a private, unmodified instance of LibreTranslate.
- Privacy: We do not store or log the text you translate.
- Security: Data is encrypted in transit using industry-standard TLS.
- Technical Logs: Our backend server may temporarily log standard technical metadata (such as IP addresses) for the sole purpose of preventing service abuse. These logs are deleted regularly.
5. Content Disclaimer
Flashcards generated by AI are provided for convenience and efficiency. AI models can occasionally produce inaccurate or "hallucinated" information. Users are responsible for reviewing all AI-generated content for accuracy before relying on it for study purposes.
6. Diagnostic Logs
The app generates local technical logs on your device. These are never sent automatically. You may choose to share these logs manually via the iOS Share Sheet for troubleshooting purposes. Logs are stored as plain text so you may review them before sharing.
7. Children's Privacy
Plain Flashcards is intended for a general audience (ages 10+). We do not knowingly collect personal information from children under 13. If you believe a child has shared diagnostic logs or AI input content with us, please contact us for immediate deletion.