StudyFlashcards Create, organize, and study flashcards offline. No account needed. Features Organization - Unlimited flashcards - 3-level category hierarchy (Category → Subcategory → Sub-subcategory) - Custom tags for filtering - Color-coded categories with icons Study Tools - Auto-play mode with adjustable timing - Built-in timer - Progress tracking per category - Accuracy statistics (correct/incorrect answers) Content - Text questions and answers - Image support for visual learning - Automatic card sizing based on content length Interface - Dark and light themes - 4 languages: English, Portuguese, Spanish, Chinese - Table and grid view modes - Card flip animation Data - Everything stored locally on your device - Manual backup to JSON file - Import/restore from backup - Bulk card operations (select, edit, delete) Works Offline - No internet connection required. All data stays on your device.