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Beautiful app, very useful to a graph theorist, but it is all in Japanese, which I don’t speak.
Free
About
Visualize network properties by drawing graphs with your finger. Instantly see geometric and structural measures like discrete curvature and centrality, displayed with color-coded nodes and links. Save and re-analyze your creations offline.
✓Sketch nodes and links by hand
✓Visualize discrete Ollivier–Ricci curvature
✓Calculate six node centrality measures
✓Color-coded nodes and links with numeric labels
✓Save and re-analyze graphs offline
✓No account or network connection required
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What's New in GraphWeave
1.2
October 19, 2026
- Draw nodes and links with your finger, then compute metrics instantly - Ollivier–Ricci curvature plus six centralities (degree, closeness, betweenness, eigenvector, clustering, PageRank) - Learn Mode: definitions and plain-language meaning of every metric - Switch between Japanese and English in the app - Save graphs on your device and reopen them anytime - Fully offline — no account, no data collected
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FAQ
What is GraphWeave?
GraphWeave is an educational tool that allows users to draw network graphs by hand and instantly visualize their geometric and structural properties, such as discrete curvature and centrality measures.
How does GraphWeave help with learning graph theory?
It provides a hands-on way to explore concepts like curvature and centrality by allowing users to draw networks and see these metrics computed and displayed in real-time, aiding comprehension for students and teachers.
Can I use GraphWeave offline?
Yes, GraphWeave works fully offline. It does not require an account or a network connection, making it accessible for use anywhere.
What kind of network properties does GraphWeave calculate?
GraphWeave calculates discrete Ollivier–Ricci curvature for links and six node measures: degree, closeness, betweenness, eigenvector centrality, clustering coefficient, and PageRank.
How are the graphs displayed in GraphWeave?
Nodes and links are automatically colored on a blue-to-red scale (coolwarm) and are accompanied by numeric labels showing their calculated values.
Can I save my graphs in GraphWeave?
Yes, you can save your graphs directly on your device and reopen them anytime to re-analyze their properties.
Does GraphWeave collect any user data?
No, GraphWeave collects no data. Your graphs are stored only on your device and are never sent anywhere, ensuring user privacy.
What devices does GraphWeave support?
GraphWeave is currently supported on iPhones.
