VisiGrab: Learn to Code & DSA

Ievgen Ovsii

In-app purchases

About this app

VisiGrab is your interactive DSA visualizer — the easiest way to master Python coding, Java, and C++ programming through step-by-step visual animations. Whether you're a computer science student preparing for a code study exam, a self-taught developer getting ready for tech interviews, or an experienced programmer brushing up on data structures, VisiGrab makes learning intuitive and engaging.

Why VisiGrab?

The true value of VisiGrab isn’t just the content itself—which you can find online for free—but the way you experience and process it.

Studying data structures from raw sources often feels like wandering blindly through a dark cave. VisiGrab acts as your guide, taking you by the hand and leading you smoothly along the winding paths into the light.

It is also the ultimate tool to overcome imposter syndrome. Many talented programmers feel like frauds simply because they lack a formal background in algorithms. VisiGrab cures this anxiety by making core computer science concepts so intuitive that they finally click.

As a student or developer, you have a choice: waste weeks digging through tons of unstructured tutorials, or build a rock-solid computer science foundation in just a few days. Time is your most valuable resource, and this study app is designed to save it. By delivering content in an adapted, step-by-step sequence, VisiGrab builds a cohesive mental map in your mind, transforming you into a confident engineer.

Comprehensive DSA Coverage

Data Structures:
• Array, Linked List, Doubly Linked List
• Stack, Queue
• Min-Heap
• Hash Table (chaining & open addressing techniques)
• Binary Search Tree (BST) & Trie
• AVL Tree & Red-Black Tree
• Graph & Graph Constructor (build your own graphs)

Sorting & Operations:
• Bubble, Selection, Insertion, Merge, Heap, Quick Sort
• Pre-order, In-order, Post-order, and Breadth-first traversal (BFS)
• Inserting and deleting nodes in BST, AVL, and Red-Black Trees
• Depth-first search (DFS) & Dijkstra's algorithm (shortest path)
• Bellman-Ford, Prim's, and Kruskal's Minimum Spanning Tree
• Topological Sort & Union-Find

Code Examples in Java, Python, and C++

Every visual DSA animation is accompanied by its implementation code in Java app format, Python coding, and C++. See the direct link between the code and the visual animation — understand not just what the concept does, but how the program makes it happen. Full source code available on GitHub.

Available in 10 Languages

VisiGrab supports English, German, French, Spanish, Portuguese, Polish, Ukrainian, Japanese, Korean, and Chinese (Simplified) — making it accessible to CS students worldwide.

Perfect for Coding Interview Preparation

Preparing for your next technical interview at a top tech company? VisiGrab helps you visualize and understand the DSA topics most commonly asked in coding interviews. Build a strong foundation in data structures and go into your interview with confidence. Ideal for LeetCode practice, competitive programming preparation, and CS exam study.

Gamified Learning Experience

VisiGrab features a gaming-inspired design that makes studying coding fun and motivating. Interactive controls let you step through each node at your own pace, manipulate data in real-time, and see results instantly.

Key Features

• Interactive visual animations for every binary tree, graph, and structure
• Step-by-step execution — pause, rewind, and control the pace
• Code view with Java, Python, and C++ implementations
• Offline access — study app anywhere, no internet required
• Gamified interface that keeps you engaged
• One-time purchase — no subscriptions, no ads, no recurring fees

Learn DSA Anytime, Anywhere

Whether you're commuting, waiting between classes, or studying at home, VisiGrab turns your phone into a powerful code learning study app. No internet connection needed — your complete DSA course is always available offline.

Download VisiGrab today and start mastering data structures visually!

Ratings and reviews

Excellent app, great value! I'm a professional engineer, but learned mostly on the job, so I have a lot of gaps around algo/data struct/big O. I've been trying to learn and be able to name them all, and this app is awesome! What completely sold me on getting full access was the light bulb part on slide 17 of Arrays. That kind of granular information really helps me cement things together and it was wonderful to see that!

Great app so far! I would like to see some advanced algorithms as well. But it's ok to just getting started with algo and data structure.

This makes learning of data structures so much easier. The visuals and in-depth explanations help with getting the concept to "click".

What’s new

• Added B-Tree — add and remove keys, choose the maximum degree, and watch the nodes split, borrow and merge