CLRS.Helper vs ChatMate_
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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;
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.
- AI-powered chatbot
- Homework assistance
- Casual conversation
- Personalized recommendations
- User-friendly interface
- Mobile accessibility
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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
Verdict
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
CLRS.Helper costs $0.99 and ChatMate_ $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | CLRS.Helper | ChatMate_ |
|---|---|---|
| Price | $0.99 — better | $9.99 |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 6 weeks — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 43 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 巍 顾 | Beyond Confident Labs LLC |
Customer experience
CLRS.Helper
ChatMate_
In-app purchases
CLRS.Helper
No in-app purchases
ChatMate_
No in-app purchases









