Comparison

CLRS.Helper vs ChatMate_

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

Head to head
About

CLRS.Helper

This tool helps you study algorithms from the third edition of CLRS. It allows single-step or continuous execution of pseudocode, setting breakpoints, and tracking recursive function calls to understand algorithm design and correctness.

Highlights
  • Pseudocode single-step and continuous execution
  • Breakpoint setting and status observation
  • Tracking recursive function calls
  • Recording pseudocode execution times
  • Covers algorithms from CLRS 3rd edition
  • Visualizes data structure changes
Features
Read full description

Refer to The third edition of the book, covering content: 2. Getting Started: Insertion sort, Merge sort; 4. Divide-and-Conquer: Maximum-subarray, Matrix Multiplication[normal, recursive, Strassen’s algorithm]; 6. Heapsort: Heapsort[max-heap, min-heap]; 7. Quicksort: Quicksort; 8. Sorting in Linear Time: Counting sort; 12. Binary Search Trees: Binary search tree[Inorder Walk, Search Recursive, Search Iterative, Minimum Iterative, Maximum Iterative, Successor, Predecessor, Insert, Delete]; 13. Red-Black Trees: Red Black Tree[Insert, Delete]; 15. Dynamic Programming: Rod cutting[Recursive, Top_down, Bottom_up, Print],Longest common subsequence; 16. Greedy Algorithms: Acitivity selection[Recursive, Iterative],Huffman codes; 22. Elementary Graph: Breadth-first search, Depth-first search, Topological sort, Strongly connected components; 23. Minimum Spanning Trees: Minimum spanning tree[Kruskal’s algorithm,Prim’s algorithm]; 24. Single-Source Shortest Paths: The Bellman-Ford algorithm,DAG algorithm,Dijkstra’s algorithm; 25. All-pairs Shortest Paths: All-pairs Shortest paths algorithms[Slow,Faster,The Floyd-Warshall algorithm]; 26. Maximum Flow: The Ford-Fulkerson algorithm; Addition: Tower of Hanoi,N Queens Problem,Comparison of sorting algorithms; The primary features: You can run the pseudo-code single step or continuous, observe the change of parameters and data structures,it can help you to understand the design thought of the algorithm; You can set breakpoints in program and ovserve the status of breakpoint, it can help you to understand why this algorithm is corrcet by using loop invariants; With running-time function stacks and the returning positions,you can track the running process of recursive functions easily, and understand the operation mechanism of computer programs; By recording the performed times of the pseudo-codes can help you to understand the running time of algorithms; I wish this app can be helpful to you;

About

ChatMate_

Engage in intelligent conversations with an AI chatbot on your mobile device. Get assistance with homework, casual chats, and recommendations through a user-friendly interface. Experience the power of advanced AI anytime, anywhere.

Highlights
  • AI-powered chatbot
  • Homework assistance
  • Casual conversation
  • Personalized recommendations
  • User-friendly interface
  • Mobile accessibility
Features
Read full description

Introducing ChatMate, the mobile app that allows you to carry an AI-powered chatbot in your pocket. ChatMate is built on advanced technology and is trained on a vast amount of data to provide you with accurate and reliable responses to your queries. Whether you need help with homework, want to have a casual conversation or need recommendations, ChatMate is here to assist you. With its user-friendly interface, you can chat with ChatMate anytime and anywhere on your mobile device. Download ChatMate today and experience the power of AI at your fingertips!

Screenshots

CLRS.Helper4 screens
ChatMate_4 screens

Verdict

The call

The clearest difference is price: CLRS.Helper at $0.99 against ChatMate_'s $9.99. CLRS.Helper also leads on update cadence (every 6 weeks vs every 27 months). ChatMate_'s advantage is review sentiment (100% vs 67%) and ratings volume (3 vs 1). On rating, 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

CLRS.Helper costs $0.99 and ChatMate_ $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CLRS.Helper against 5.0 for ChatMate_. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 67% of CLRS.Helper's written reviews are positive against 100% of ChatMate_'s.

UpkeepUpdate frequency

CLRS.Helper ships an update every 6 weeks, ChatMate_ every 27 months. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
CLRS.Helper versus ChatMate_: the parameters behind the verdict, then further details
ParameterCLRS.HelperChatMate_
Price$0.99 — better$9.99
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 6 weeks — betterEvery 27 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.2
Further details — not scored
Size43 MB3 MB
Age rating4+4+
Developer巍 顾Beyond Confident Labs LLC

Customer experience

CLRS.Helper

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

ChatMate_

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CLRS.Helper

No in-app purchases

None

ChatMate_

No in-app purchases

Questions

Is CLRS.Helper free?
CLRS.Helper costs $0.99, with no in-app purchases.
Is ChatMate_ free?
ChatMate_ costs $9.99, with no in-app purchases.
Which has better reviews, CLRS.Helper or ChatMate_?
CLRS.Helper and ChatMate_ are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do CLRS.Helper or ChatMate_ have ads?
Neither CLRS.Helper nor ChatMate_ shows ads.
Which is updated more often, CLRS.Helper or ChatMate_?
CLRS.Helper ships an update every 6 weeks, and ChatMate_ every 27 months. Most recently, CLRS.Helper was updated on October 6, 2026 and ChatMate_ on September 28, 2026.

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