Pie Chart Maker by Grafi vs Thinknode

Grafi allows you to create a completely custom pie chart in just seconds. Choose from pie charts, donut charts, and spie charts. Craft completely unique charts with an unlimited selection of colors and data points. Features: -Create pie charts with an unlimited amount of data points -Save an image of your pie chart to the Photos app -Save your pie chart to edit later -Create 3 different charts: Pie Charts, Donut Charts, and Spie Charts -Share your chart through email, messages, social media, and more! -Completely customizable colors (The possibilities are endless!) -Intuitive interface that makes charts easy -Real-time visualization while editing -Show pie slice percentages -Dark Mode Download Grafi now to easily create and share beautiful pie charts!

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.