VisiGrab vs Forma
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VisiGrab
This app offers an interactive, visual guide to mastering algorithms and data structures. It transforms complex concepts into intuitive experiences with dynamic visualizations and step-by-step explanations. Prepare for technical interviews and enhance your coding skills with comprehensive coverage and code examples.
- Interactive visualizations
- Step-by-step algorithm unfolding
- Comprehensive DSA coverage
- Code examples in Python and Java
- Gamified learning
- Offline access
- Lifetime access
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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 • B-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!
Forma
Master modern Rust programming on your mobile device with interactive lessons and instant feedback quizzes. Practice coding directly within the app using a built-in Rust Playground. Track your learning progress and achievements as you delve into key Rust concepts.
- Curated Rust lessons
- Instant-feedback quizzes
- Built-in Rust Playground
- Progress tracking (streak, XP, level)
- Guided learning path
- Forge-inspired UI with animations
- Dark theme for reading
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Forma is the fastest way to learn modern Rust on mobile. Work through curated lessons, test yourself with instant‑feedback quizzes, and try code in a built‑in Rust Playground without leaving the app. Track your streak, XP, and level as you master ownership, borrowing, lifetimes, pattern matching, and error handling. • Guided learning path: Foundations → Ownership & Moves → Borrowing & Lifetimes → Enums & Pattern Matching → Error Handling • Hands‑on coding: open the Rust Playground sheet to edit and run code samples from any lesson • Quizzes with explanations: prove understanding, see why answers are right or wrong • Progress tracker: streak counter, XP, rank‑up moments, and “continue where you left off” shortcuts • Beautiful forge‑inspired UI with Ferris mascot animations and dark theme tuned for long reading sessions • Privacy‑first: Firebase Auth + Firestore; no ads or tracking beyond analytics to improve the experience
Screenshots
Verdict
The clearest difference is in-app purchases: Forma at none against VisiGrab's 1. Forma also leads on rating (5.0 vs 4.8) and iOS requirement (13.0 vs 15.0). VisiGrab's advantage is ratings volume (74 vs 1). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. VisiGrab sells 1 one-off in-app purchase. Forma asks for nothing beyond the download.
Forma holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: VisiGrab has 74 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | VisiGrab | Forma |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (74 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.2% of reviews | — |
| Number of ratings | 74 — better | 1 |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 310 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Ievgen Ovsii | Oleksandr Chepkov |
Customer experience
VisiGrab
Forma
In-app purchases
VisiGrab
- Lifetime Access — All Content$6.99
Forma
No in-app purchases









