Graph3D vs Hana

Visualize graphs in 3D. Rotate, zoom and select vertices. Import graph matrix, vertex/edge file duo and newick trees. Run spring algorithm to reposition graph.

Hana (하나) makes learning Korean simple, fun, and personal. Whether you're a complete beginner starting with the Korean alphabet or already know Hangul and want to build your vocabulary, Hana adapts to your level. WHAT YOU GET: - 778+ flashcards across 5 learning levels - Korean alphabet (Hangul) with audio pronunciation - Reading rules and phonetics guide - Topic-based vocabulary: food, family, travel, work, school, and more - Interactive practice modes: Word Scramble and Match Pairs - Smart progress tracking with daily goals and streaks - Cloud sync across all your devices - Available in English, Russian, and Spanish WHY HANA? Hana means "one" in Korean — and it represents your first step into the language. Unlike generic flashcard apps, Hana is designed specifically for Korean learners, with native pronunciation, level-based progression, and a clean, distraction-free interface. PERFECT FOR: - K-pop and K-drama fans who want to understand their favorite songs and shows - Travelers preparing for a trip to South Korea - Students studying Korean as a foreign language - Anyone curious about one of the world's most logical writing systems Start your Korean learning journey today with Hana!