Comparison

Algorithms vs Data Structure Display

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Algorithms

Explore and learn about a wide range of algorithms through clear explanations and animations. Deepen your understanding with interactive simulation modes and discover algorithms related to encryption and security. This app offers a comprehensive journey into the world of computer science concepts.

Highlights
  • Animated algorithm explanations
  • Interactive simulation mode
  • Encryption and security algorithms
  • Data structures explained
  • Sorting algorithms
  • Graph search algorithms
Features
Read full description

Enjoy watching, trying, and learning with this guide to algorithms. The wide-ranging field of algorithms is explained clearly and concisely with animations. Deepen your understanding by exploring concepts in "Sim Mode". Also includes algorithms closer to home involving encryption and security. Come on, let's take a journey into the world of algorithms! ==== Categories and Included Topics ==== [ Sort ] Bubble Sort, Selection Sort, Insertion Sort, Heap Sort, Merge Sort, Quicksort [ Clustering ] k-means Algorithm [ List Search ] Linear Search, Binary Search [ Graph Search ] Breadth-First Search, Depth-First Search, Bellman-Ford, Dijkstra's Algorithm, A* algorithm [ Math ] Euclidian Algorithm, Primality Test [ Data Compression ] Run-Length Encoding, Huffman Coding [ Security ] Hash Functions, Shared-Key Cryptosystem, Public-Key Cryptosystem, Hybrid Cryptosystem, Diffie-Hellman Key Exchange, Message Authentication Codes, Digital Signatures, Digital Certificates [ Data Structures ] Lists, Arrays, Stacks, Queues, Hash Tables, Heaps, Binary Search Trees [ The Web ] PageRank [ Recursion ] Tower of Hanoi ==== Downloading and Viewing All of the Algorithms ==== This app is free to download. A portion of the app's topics can be viewed after choosing to "Purchase all algorithms". ==== On iPad ==== This app is also compatible for use on iPad, where it can be used in both horizontal and vertical orientations. ==== Supported languages ==== - English - Español (Spanish) - Português (Portuguese) - 中文 (简体字) (Chinese (Simplified)) - Русский (Russian) - 日本語 (Japanese) - 한국어 (Korean) The display language can be changed on the settings menu. ==== About VPP Compatible Version ==== We also provide Volume Purchase Program (VPP) compatible version as another app for educational institutions and companies. if need be, visit "Volume Purchase Program" (https://vpp.itunes.apple.com/) and search "Algorithms VPP".

About

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.

Highlights
  • 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
Features
Read full description

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.

Screenshots

Algorithms4 screens
Data Structure Display4 screens

Verdict

The call

The clearest difference is review sentiment: Algorithms at 91% against Data Structure Display's 62%. Algorithms also leads on update cadence (every 6 weeks vs every 5 months) and rating (4.7 vs 4.5). Data Structure Display's advantage is ratings volume (676 vs 101). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Algorithms sells 1 one-off in-app purchase and Data Structure Display sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Algorithms holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Data Structure Display has 676 ratings behind it against 101, so its average is the more settled of the two. Written reviews point the same way: 91% of Algorithms's written reviews are positive against 62% of Data Structure Display's.

UpkeepUpdate frequency

Algorithms ships an update every 6 weeks, Data Structure Display every 5 months. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Algorithms versus Data Structure Display: the parameters behind the verdict, then further details
ParameterAlgorithmsData Structure Display
PriceFreeFree
Rating4.7 (101 ratings) — better4.5 (676 ratings)
Positive reviews90.6% of reviews — better61.9% of reviews
Number of ratings101676 — better
Update frequencyEvery 6 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.0 — better13.0
Further details — not scored
Size32 MB8 MB
Age rating4+4+
DeveloperMoriteru IshidaJinan Matrix Information Technology Co., Ltd.

Customer experience

Algorithms

All ratings101 ratings
Positive92.1%
Neutral3.0%
Negative5.0%
Written reviews202 reviews
Positive90.6%
Neutral5.0%
Negative4.5%

Data Structure Display

All ratings676 ratings
Positive87.1%
Neutral2.4%
Negative10.5%
Written reviews42 reviews
Positive61.9%
Neutral2.4%
Negative35.7%

User reviews

Algorithms

From 101 App Store ratings

What we love

  • ✨ Clear and understandable explanations
  • 🖼️ Excellent visualizations and animations
  • 🧠 Great for learning and understanding algorithms
  • 💡 Thoughtfully designed and implemented
  • 💰 Worth the purchase/price

Room to improve

  • ❓ Lacks code examples/snippets
  • ❓ Missing time complexity (Big O)
  • ❓ Limited number of algorithms
  • ❓ Some users confused about pricing/charges
  • ❓ Simulation block repetition

Data Structure Display

From 676 App Store ratings

What we love

  • 📚 Excellent for DSA learning and studying
  • ✨ Interactive components and pseudo code quality
  • 👍 Good reference material for beginners
  • 🎓 Unique educational content

Room to improve

  • 🔒 90% of content locked behind $2.99 paywall
  • 📖 Incomplete coverage of data structures
  • ✍️ Poor grammar and spelling
  • 📱 No dark mode support on macOS
  • 🔔 Excessive review prompts

Bugs and requests

Algorithms

Requested features

11 requests
  • Add code examples (Python, C++, JS)
  • Include time complexity (Big O notation)
  • Add more algorithms
  • Include AI-related algorithms (neural networks, reinforcement learning)
  • Add propositional and set logic for programmers
Show 6 more
  • Animated examples of algorithms used together
  • Add more tech-related topics (data engineering, analytics, ML, DB architecture)
  • Add more features
  • Add algorithm practice sections
  • Add Red-black tree
  • Add machine learning algorithms

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

In-app purchases

1 purchases

Algorithms

One-time1
  • All of the algorithms$2.99
1 purchases

Data Structure Display

One-time1
  • Unlock all data structures$2.99

Questions

Is Algorithms free?
Algorithms is free to download, with in-app purchases available.
Is Data Structure Display free?
Data Structure Display is free to download, with in-app purchases available.
Which has better reviews, Algorithms or Data Structure Display?
Algorithms is rated higher. Algorithms averages 4.7 out of 5 from 101 ratings, while Data Structure Display averages 4.5 from 676 ratings.
Do Algorithms or Data Structure Display have ads?
Neither Algorithms nor Data Structure Display shows ads.
Which is updated more often, Algorithms or Data Structure Display?
Algorithms ships an update every 6 weeks, and Data Structure Display every 5 months. Most recently, Algorithms was updated on September 30, 2026 and Data Structure Display on October 3, 2026.

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