Data Structure Display vs Learn & Code
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Data Structure Display
Explore and learn data structures through dynamic debugging and visual observation of changes. This app covers linear structures, trees, graphs, and recursive algorithms like the Tower of Hanoi, offering interactive learning experiences.
- Dynamic data structure debugging
- Visual observation of data structure changes
- Learn linear structures (arrays, lists, queues, stacks)
- Explore tree structures (binary, AVL, red-black, heap)
- Understand graph structures and algorithms
- Debug recursive algorithms like Tower of Hanoi
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A novel data structure learning app, the most significant feature is that you can dynamically debug the data structure in this app, and visually observe the changes in the data structure during the operation. In this app you can learn the following data structures: 1. Linear structures, including arrays, linked lists, queues, stacks. Linear structures are the basis for other advanced data structures, as fine as advanced algorithms. 2. Tree structures, including binary tree, binary search tree, AVL tree, red-black tree, and heap. In this app, you can dynamically debug three traversals of the binary tree (including non-recursive traversal implementations), searching in the tree, balance adjustments in the AVL tree and red-black tree, and heap sorting. Give you the ability of handwritten red-black trees. 3. Graph structure, including the adjacency list storage representation of the graph structure, depth-first search and breadth-first search, finding the Euler path in the graph, topological sorting, maximum connected components, minimum spanning tree problem, and shortest single source Path problem. It also provides dynamic debugging of these classic graph algorithms. 4. The data structure introductory class will talk about the problem of the Tower of Hanoi. The algorithm that solves this problem is often recursive. This app provides dynamic debugging of the Tower of Hanoi problem, so you can no longer be confused about the recursive calls of the Tower of Hanoi.
Learn & Code
Learn to code with interactive lessons, gamified challenges, and a robust code editor. Sharpen your skills in multiple languages, compete with others, and prepare for technical interviews. Offers a premium membership for enhanced features.
- Bite-sized lessons in JavaScript and Python
- Over 200 coding challenges
- Gamified learning with points and leagues
- Multi-language autocomplete code editor
- Community and leaderboards
- Premium membership for unlimited access
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Immerse yourself in CodenQuest, the all-in-one coding app that fuses programming practice, bite-sized lessons, and gamification to elevate your coding journey. Now featuring concise JavaScript and Python lessons similar to Mimo, CodenQuest helps you learn to code step by step with interactive exercises and real-time feedback. Whether you’re an aspiring developer, a seasoned pro, or someone prepping for technical interviews, CodenQuest offers the perfect environment to sharpen your skills in web development, software engineering, and data science. Key Features: Bite-Sized Lessons: Dive into structured JavaScript and Python tutorials designed to simplify complex topics. From basic syntax to more advanced concepts, our lessons promote efficient learning and logical problem-solving. Diverse Coding Challenges: Explore over 200 coding puzzles spanning multiple languages, including Java, TypeScript, Kotlin, Swift, Rust, PHP, Ruby, Go, and C++. Daily challenges reinforce best practices and ensure steady progress. Engaging Gamification: Earn points, maintain streaks, and battle for the top spot in weekly coding leagues—rising from Bronze to Challenger. Challenge yourself with algorithm puzzles and coding exercises that keep you motivated. Premium Membership: Upgrade to access unlimited challenges, a coding assistant, and an ad-free interface. Tackle intricate problems on the go and craft custom test cases to fine-tune your skills. Enhanced Code Editor: Enjoy a robust coding experience optimized for iOS: Multi-Language Autocomplete: Intelligent suggestions across 11 languages. iOS-Specific Shortcuts: Snippet jumping, custom arrows, and adaptive scrolling for streamlined coding. Personalized Environment: Clear navigation and organized coding spaces to help you focus on problem-solving. Community & Competition Join a thriving network of coders, compare solutions, and climb leaderboards. Every code submission morphs into a mini-competition, fueling your growth as you learn to code faster and more effectively. Who Benefits from CodenQuest? Aspiring Coders: Break away from dull tutorials and embrace gamified lessons in JavaScript, Python, and more—perfect for interview prep and building solid fundamentals. Professional Developers: Keep your skills fresh in languages like PHP, Rust, and Go with quick, on-the-go coding challenges that fit your schedule. Advanced Programmers: Push boundaries with complex problems, analyze performance metrics, and compete in top-tier leagues for an extra edge in your coding career. Job Seekers: Prepare for technical interviews using challenges modeled after real-world coding tests. Gain the confidence and proficiency to stand out in any recruitment process. Why CodenQuest? CodenQuest redefines learning to code by merging education with fun. Practice core programming concepts, enhance your programming logic, and master new technologies. Our daily tasks and algorithm puzzles immerse you in software development fundamentals, whether you’re focused on web development, data science, or software engineering. With guided tutorials, you’ll build confidence in coding syntax, efficiency, and problem-solving techniques. Download CodenQuest and unlock your potential. Our interactive approach, detailed analytics, and gamified progression transform coding practice into an exciting quest. Strengthen your command of Python, JavaScript, Java, and other popular languages, then apply these skills in real-world projects or technical interviews. Gain a competitive edge, join our vibrant community of coders, and climb the ranks of the coding leagues to showcase your expertise. Embark on your coding adventure today and experience how CodenQuest can revolutionize your learning routine. With each lesson, challenge, and league match, you’ll move closer to achieving your coding ambitions. Take the leap and discover a future of limitless possibilities—one line of code at a time. Terms of use: https://codenquest.com/terms
Screenshots
Verdict
The clearest difference is ads: Data Structure Display at none against Learn & Code's shown. Data Structure Display also leads on ratings volume (676 vs 125) and iOS requirement (13.0 vs 15.0). Learn & Code's advantage is update cadence (every 4 days vs every 5 months). On price, rating, review sentiment and in-app purchases 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. Data Structure Display sells 1 one-off in-app purchase and Learn & Code sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for Data Structure Display against 4.6 for Learn & Code. That said, the two scores are not equally well evidenced: Data Structure Display has 676 ratings behind it against 125, so its average is the more settled of the two. Written reviews are what separate them: 62% of Data Structure Display's written reviews are positive against 67% of Learn & Code's.
Data Structure Display ships an update every 5 months, Learn & Code every 4 days. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.
| Parameter | Data Structure Display | Learn & Code |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (676 ratings) | 4.6 (125 ratings) — better |
| Positive reviews | 61.9% of reviews | 66.7% of reviews — better |
| Number of ratings | 676 — better | 125 |
| Update frequency | Every 5 months | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Jinan Matrix Information Technology Co., Ltd. | CodenQuest |
Customer experience
Data Structure Display
Learn & Code
Bugs and requests
Data Structure Display
Reported bugs
2 issues- Aggressive review request frequency
- Inconsistent dark mode functionality between iOS and macOS
Requested features
4 requests- Dark mode implementation
- Comprehensive coverage of all data structure variants
- More practical exercises and problems
- Ad-supported free tier instead of paywall
Learn & Code
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Data Structure Display
- Unlock all data structures$2.99
Learn & Code
- Premium weekly3 Days trial$2.997 Days
- Premium Subscription$7.991 Month
- Premium Subscription3 Days trial$49.991 Year
- 500 Gems$1.99
- Premium 1 month$12.99
- Premium 3 months$24.99
Questions
Is Data Structure Display free?
Is Learn & Code free?
Which has better reviews, Data Structure Display or Learn & Code?
Do Data Structure Display or Learn & Code have ads?
Which is updated more often, Data Structure Display or Learn & Code?
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