SigridDraw vs Thinknode

Load your reference image from your photo library, then configure the drawing grid to your liking. Reproduce the grid on any physical or digital media using the scaling module to help you get the dimensions and start drawing, cell by cell. The color picker allows you to retrieve the hexadecimal code of the selected color. On iPad, use SigridDraw directly as a reference by displaying on the same screen your favorite drawing app (not included) thanks to SplitView. Features: • Fully configurable overlay grid (grid size, color) • Black and white filter for the reference picture • Pinch to zoom • Color picker • Scale calculator to compute your target grid size • Split View support on iPad to display SigridDRaw and your favorite drawing app side by side • Dark mode

ThinkNode – Collaborative Mind Mapping & Concept Maps ThinkNode is a powerful, modern tool for building and sharing mind maps, concept maps, and visual knowledge structures — alone or in real time with others. Enjoy complete creative freedom on an infinite, zoomable canvas. Drag and drop nodes freely, resize them, choose shapes (circle, rectangle, rounded rectangle), pick any color, and edit text directly inside each node. Connect ideas with customizable arrows — straight or curved, single- or double-headed, solid or dashed — and add descriptive labels to connections. Collaborate seamlessly with friends, classmates, or colleagues. Multiple users can edit the same map simultaneously with live cursors, instant updates, role-based permissions (Owner, Editor, Viewer), and easy sharing via link or email invitation. Every map is automatically saved with version history. Work offline with automatic sync when you reconnect. Export your maps as high-quality PNG images or vector-ready PDFs in seconds. Key Features Infinite pannable and pinch-to-zoom canvas with optional grid background Fully customizable nodes: shapes, colors, sizes, editable text Rich arrow connections: curves, styles, labels, easy creation & deletion Real-time multiplayer editing with live presence indicators Secure sign-in and cloud storage via Firebase Auto-save, revision history, and full offline support Dark and light mode support Responsive layout optimized for phones and tablets One-tap export to PNG and PDF Whether you're a student organizing lecture notes, a professional mapping strategies, a team brainstorming projects, or anyone visualizing complex ideas — ThinkNode helps you turn thoughts into clear, beautiful, collaborative visual diagrams.