Comparison

Data Structure Display vs Leet Track

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

Head to head
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.

About

Leet Track

Access Leetcode questions and solutions on your mobile device. Track your progress and learn about algorithms and data structures with a clean user interface.

Highlights
  • View Leetcode questions and solutions
  • Track Leetcode progress
  • Clean user interface
  • Learn Algorithms and Data Structures
  • Mobile access
Features
Read full description

Leet Track is an app that allows you to quickly view Leetcode questions and their solutions on the go as well as checking your Leetcode progress in a clean UI. You can also learn topics related to Algorithms and Data Structures as well!

Screenshots

Data Structure Display4 screens
Leet Track4 screens

Verdict

The call

The clearest difference is rating: Leet Track at 5.0 against Data Structure Display's 4.5. Leet Track also leads on in-app purchases (none vs 1) and review sentiment (83% vs 62%). Data Structure Display's advantage is ratings volume (676 vs 6) and device support (4 vs 2). On price, update cadence and ads 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. Data Structure Display sells 1 one-off in-app purchase. Leet Track asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Leet Track holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Data Structure Display has 676 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 62% of Data Structure Display's written reviews are positive against 83% of Leet Track's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

Scorecard7 real differences · 3 level
Data Structure Display versus Leet Track: the parameters behind the verdict, then further details
ParameterData Structure DisplayLeet Track
PriceFreeFree
Rating4.5 (676 ratings)5.0 (6 ratings) — better
Positive reviews61.9% of reviews83.3% of reviews — better
Number of ratings676 — better6
Update frequencyEvery 5 monthsEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size8 MB15 MB
Age rating4+4+
DeveloperJinan Matrix Information Technology Co., Ltd.ATLASCODE LLC (US)

Customer experience

Data Structure Display

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

Leet Track

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

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

Leet Track

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Data Structure Display

One-time1
  • Unlock all data structures$2.99
None

Leet Track

No in-app purchases

Questions

Is Data Structure Display free?
Data Structure Display is free to download, with in-app purchases available.
Is Leet Track free?
Leet Track is free to download, with no in-app purchases.
Which has better reviews, Data Structure Display or Leet Track?
Leet Track is rated higher. Data Structure Display averages 4.5 out of 5 from 676 ratings, while Leet Track averages 5.0 from 6 ratings.
Do Data Structure Display or Leet Track have ads?
Neither Data Structure Display nor Leet Track shows ads.
Which is updated more often, Data Structure Display or Leet Track?
Data Structure Display ships an update every 5 months, and Leet Track every 5 months. Most recently, Data Structure Display was updated on October 17, 2026 and Leet Track on October 3, 2026.

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