LogicCanvas

LogicCanvas is the ultimate interactive whiteboard designed specifically for software engineers, computer science students, and tech professionals preparing for data structures & algorithms (DSA) exams, LeetCode practice, and system design interviews.

Whether you are sketching complex binary trees, mapping out dynamic programming grids, or diagramming microservices, LogicCanvas offers a premium digital canvas that translates your logical thoughts into clean, structured visuals.

KEY FEATURES:

• BUILT-IN DSA & LEETCODE PROBLEM LIBRARY Browse through a curated list of essential coding problems (including starter packs and a Pareto-optimized list of must-solve interview questions). Each problem comes with complete descriptions, constraints, examples, and progressive step-by-step hints to guide you—all side-by-side with your sketchpad.

• ON-DEVICE AI TUTOR (LOCAL LLM) Stuck on a problem? Get instant, Socratic-style guidance from our privacy-first, on-device AI. The AI can "see" your whiteboard sketches, analyze your logical structures, and ask guiding questions to help you find the optimal approach without giving away the answer. It runs entirely offline, meaning your sketches and data never leave your device!

• INTELLIGENT SHAPE DETECTION (AI DRAWING) Draw rough circles, squares, rectangles, triangles, and arrows. Our built-in intelligence instantly snaps your freehand sketches into clean, crisp geometric diagrams, keeping your algorithms and data structures neat and legible.

• ML-POWERED HANDWRITING RECOGNITION (PAINT-TO-TEXT) Convert your handwritten notes, variables, and pseudocode into clean digital text in real-time. Power your diagrams with legible labels without typing on a keyboard.

• SYSTEM DESIGN & CLOUD DIAGRAMMING Access premium icon libraries containing AWS, GCP, and Azure components. Visualize architectures, flowcharts, API gateways, database clusters, and cloud setups easily.

• CONNECTOR TOOL Need to link components, node links, or draw flow arrows? Use the smart Connector tool to draw lines that attach to your diagrams and icons, making architecture sketching feel fluid and intuitive.

• MULTIPLE WHITEBOARDS Organize your practice. Create separate boards, switch between them instantly, and name them based on the specific problem, pattern (e.g., Two Pointers, Graphs), or system architecture you are working on.

• OFFLINE PERSISTENCE & iCLOUD SYNC Your data stays with you. All boards, notes, and progress are saved locally on your device via Hive. Enable iCloud synchronization to sync your canvases seamlessly across all your iOS devices.

• SHARE & EXPORT OPTIONS Take screenshots of your diagrams, export them as high-quality PDF files, or print them directly from the app to use for study guides, blog posts, or interview documentation.

WHY LOGICCANVAS? LogicCanvas bridges the gap between text-based coding and visual problem-solving. Practice drawing trees, graphs, heaps, and arrays the same way you would during an actual technical interview. Refine your system design layout with professional components, write pseudocode by hand, and get real-time feedback from a localized AI tutor to truly mimic real-world engineering whiteboard rounds.

Master your interviews, visualize the logic, and ace your technical rounds with LogicCanvas!

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