VisiGrab vs Preparo
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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Searching for the perfect DSA companion? Look no further! VisiGrab is your interactive, visual guide to mastering algorithms and data structures — transforming complex concepts into intuitive, easy-to-understand experiences. Ace your next technical interview and level up your coding skills with our comprehensive learning platform. Visualize & Conquer DSA Tired of dry textbooks and confusing lectures? VisiGrab brings algorithms and data structures to life with dynamic visualizations. Watch algorithms unfold step-by-step, manipulate data interactively, and gain a deep, intuitive understanding of core DSA principles. Learn faster, retain more, and finally grasp those tricky concepts. Comprehensive DSA Coverage From fundamentals to advanced topics, VisiGrab has you covered: • Sorting: Bubble, Selection, Insertion, Quick, Merge, Heap • Data Structures: Arrays, Linked Lists, Stacks, Queues, Hash Tables, Trees, Graphs • Advanced Concepts: AVL Trees, Red-Black Trees, BFS, DFS, Dijkstra, Bellman-Ford, Minimum Spanning Trees (Prim & Kruskal), Union-Find • Graph Constructor: Build and visualize your own graphs interactively • Code Examples: Explore real implementations in Python and Java — C++ coming soon. Full source code available on GitHub Perfect for DSA Mastery Whether you're a computer science student preparing for campus placement, a self-taught developer getting ready for tech interviews, or an experienced programmer brushing up on DSA concepts, VisiGrab is your essential learning tool. Sharpen your problem-solving skills and build a solid foundation in algorithms and data structures. Ideal for LeetCode practice, competitive programming, and CS exam study. Why Choose VisiGrab? • Interactive Visualizations: Learn through hands-on exploration • Gamified Learning: Stay engaged and motivated with a gaming-inspired design • Offline Access: Study anytime, anywhere — no internet required • Available in 10 Languages: English, German, French, Spanish, Portuguese, Polish, Ukrainian, Japanese, Korean, and Chinese (Simplified) • Lifetime Access: One-time purchase — no subscriptions, no ads, no recurring fees Master DSA concepts and excel in your coding interviews. Download VisiGrab today and unlock your full programming potential!
Preparo
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Preparo is a FREE interview tracking and AI-assisted preparation app. The Easy Way to DSA. Track your progress through 75 tried and tested DSA problems. Use the inbuilt timer to simulate real-world DSA interviews. Get a hint if you’re stuck, go through the solution after your attempt in the language of your choice or sit back and watch a video solution for the problem, all from within the app. With AI, You Never Start From 0. Save previously faced interview questions to give you a head start for the next interview. Fret not if it’s your first interview, AI will generate as many questions as you want. Be One Step Ahead of Schedule. Focus on the prep as Preparo takes care of reminding you to revise or nudges you minutes before an interview with your interview notes. Get timely reminders to store the questions you faced in the interview. You don’t have to leave the app for answers - AI will do it for you at the tap of a button. ExportInterviewExperience.pdf Easily share your round- or keyword-filtered breakup of questions as a PDF with your friends. Accessible by Default Experience the app in different text sizes and in light and dark modes for a truly native experience. Notes Before and After the Interview Save your to-do list to remind yourself to fill the water bottle on your desk or check your Meet permissions for a seamless interview experience. Journal your thoughts after an interview to learn from your experience later on. Prep Across Devices Sync your progress across devices using iCloud.
Screenshots
Verdict
The clearest difference is in-app purchases: Preparo at none against VisiGrab's 1. VisiGrab's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, 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. Preparo asks for nothing beyond the download.
VisiGrab ships an update fortnightly, Preparo every 3 weeks. The most recent releases landed on September 18, 2026 and May 16, 2026 respectively.
| Parameter | VisiGrab | Preparo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (74 ratings) — better | — |
| Positive reviews | 88.2% of reviews | — |
| Number of ratings | 74 — better | — |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 304 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Ievgen Ovsii | Gowtham Ravichandran |
In-app purchases
VisiGrab
- Lifetime Access — All Content$6.99
Preparo
No in-app purchases









