Comparison

Leaflet for Swift&Algorithm vs CodeMaster

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

Head to head
About

Leaflet for Swift&Algorithm

This app offers comprehensive learning modules for Swift, SwiftUI, and Combine, alongside data structures and algorithms. It provides micro-classes, tutorials, code style guides, and practical examples to help users master programming concepts and develop efficient applications.

Highlights
  • Swift language tutorials
  • SwiftUI and Combine development
  • Data structure and algorithm learning
  • Micro-classes for core concepts
  • Code style guide
  • Algorithm problem-solving examples
Features
Read full description

Leaflet helps you learn Swift/SwiftUI and Data Structure/Algorithms better. Leaflet has four main functions: 【1】Algorithm Animation Visualization Through exquisite and intuitive animation demos, abstract algorithms and data structures are made visual — every step of execution is clearly visible. This is the core highlight of Leaflet. - Animation Demos: Carefully selected classic algorithms (sorting, searching, graph algorithms, dynamic programming, recursion, etc.) built with SwiftUI + Combine for smooth animations that make algorithm execution crystal clear. - Interactive Playback: Support play, pause, step forward / step backward, and adjustable playback speed — control your learning pace freely. - Data Structure Visualization: Arrays, linked lists, stacks, queues, trees, graphs and other data structures are presented graphically; insert, delete, and traverse operations are intuitive at a glance. - Synchronized Code View: Animation demos are displayed alongside the corresponding Swift source code, letting you learn code while watching the animation — more efficient learning. - Complexity Analysis: Visually shows the time / space complexity trends of algorithms, helping you build performance-analysis thinking. Learning algorithms is no longer dry code reading, but a vivid visual experience — every algorithm becomes something you can "see and touch". 【2】Swift Tutorial - Swift one-hour micro class, quickly master the core knowledge points of Swift grammar - Swift5 complete tutorial covering all language features from beginner to advanced - Swift Code Style Guide for writing more standardized code - Swift design pattern practice 【3】Swift + SwiftUI + Combine SwiftUI's declarative UI paired with Combine's functional reactive framework — simple to learn, high-performance, and reliable, enabling developers to quickly build elegant applications. 【4】Algorithm Solutions Curated representative algorithm problems implemented in Swift, covering data structures and algorithm analysis to help you master algorithm complexity and performance analysis. Part of the application is based on the open source protocol from the following open source libraries, Gratitude: https://github.com/raywenderlich/swift-algorithm-club , Algorithms and data structures in Swift, with explanations! https://github.com/andyRon/swift-algorithm-club-cn, swift-algorithm-club's translation. Learn algorithms and data structures using Swift.

About

CodeMaster

A professional mobile code editor and development tool for iOS. It offers comprehensive code browsing, editing, and management features, along with integrated tools for remote connections, database design, and GitHub integration.

Highlights
  • File management and browser
  • VS Code core Monaco editor
  • GitHub integration
  • Code snippet management
  • Database design tool
  • SSH client and SFTP
Features
Read full description

CodeMaster - Mobile Coding IDE CodeMaster is a professional code browsing and development tool for iOS platforms, specifically designed for developers. It integrates multiple practical tools, supports multiple programming languages, and provides complete mobile code browsing, editing, management, and auxiliary development capabilities. Built-in local AI LLM delivers smart Q&A and code assistance even offline, turning your phone into a portable computing hub. Features: - File Management and Browser: Supports WiFi and WebDAV file transfer between devices, quick access to code files on mobile, supports cross-screen programming, and allows access to files on mobile via URL for code editing; intuitive directory management interface, supports preview of multiple file formats, and simultaneously supports viewing, editing, decompression, and compression of various documents. - Code Editor: Integrates the VS Code core Monaco editor, delivering a desktop-level editing experience. Supports multi-language syntax highlighting, intelligent code completion and suggestions, and allows customization of multiple editor themes to suit usage habits. - GitHub Integration: Search for open-source projects and specific code snippets, browse trending projects on the platform; supports browsing personal profiles and repositories, and enables direct editing of project code on mobile devices, seamlessly connecting to open-source development. - Code Tools: Store and manage frequently used code snippets for quick insertion, built-in code comparison tool to contrast version differences, provide multi-language code execution environment and hundreds of code template libraries for various languages, enhancing development efficiency. - Database Design: Built-in database design tool supporting MySQL and other types of database design; graphical display of data content, equipped with SQL editor, can directly write and execute MySQL statements, convenient database management. - Remote Connection: Built-in SSH client to connect to remote servers, supports secure SFTP file transfer, allows direct management of remote server files from mobile devices, enabling remote operations anytime, anywhere. ►Unlimited Access Membership Subscription - With this subscription, you can access all features in the application without restrictions. - Subscription charges depend specifically on the selected subscription plan. - When you confirm the purchase, your iTunes account will be charged. - You can turn off auto-renewal 24 hours before the current subscription ends, otherwise it will auto-renew. - The subscription fee will be deducted from your account 24 hours before the current subscription ends, depending on the package you choose. Privacy Policy: http://www.dazhuogroup.com/codemaster/privacy_statement_en.php Terms of Use: http://www.dazhuogroup.com/codemaster/terms_of_use_en.php If you have any questions or concerns, please visit http://www.dazhuogroup.com/codemaster/ and use our customer support email for feedback

Screenshots

Leaflet for Swift&Algorithm4 screens
CodeMaster4 screens

Verdict

The call

The clearest difference is monetization model: Leaflet for Swift&Algorithm at free with in-app purchases against CodeMaster's subscription. Leaflet for Swift&Algorithm also leads on review sentiment (71% vs 44%) and update cadence (every 8 days vs monthly). CodeMaster's advantage is iOS requirement (16 vs 26.0). On price, rating, ratings volume 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. Leaflet for Swift&Algorithm sells 1 one-off in-app purchase and CodeMaster sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Leaflet for Swift&Algorithm against 4.6 for CodeMaster. Both are backed by a comparable volume of ratings — 297 and 140 respectively. Written reviews are what separate them: 71% of Leaflet for Swift&Algorithm's written reviews are positive against 44% of CodeMaster's.

UpkeepUpdate frequency

Leaflet for Swift&Algorithm ships an update every 8 days, CodeMaster monthly. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 6 level
Leaflet for Swift&Algorithm versus CodeMaster: the parameters behind the verdict, then further details
ParameterLeaflet for Swift&AlgorithmCodeMaster
PriceFreeFree
Rating4.6 (297 ratings)4.6 (140 ratings)
Positive reviews71.4% of reviews — better44.4% of reviews
Number of ratings297 — better140
Update frequencyEvery 8 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.016 — better
Further details — not scored
Size53 MB1.5 GB
Age rating4+4+
Developer雷 戴Shanghai Dazhuo Information Technology Co., Ltd.

Customer experience

Leaflet for Swift&Algorithm

All ratings297 ratings
Positive89.2%
Neutral3.4%
Negative7.4%
Written reviews42 reviews
Positive71.4%
Neutral7.1%
Negative21.4%

CodeMaster

All ratings140 ratings
Positive89.3%
Neutral2.9%
Negative7.9%
Written reviews18 reviews
Positive44.4%
Neutral22.2%
Negative33.3%

Bugs and requests

Leaflet for Swift&Algorithm

Reported bugs

11 issues
  • Solutions for problems are not loading
  • App crashes on first load
  • App crashes immediately on launch
  • App crashes after first use and backgrounding
  • Paid for pro user, but no answers for many questions
Show 6 more
  • Navigation tabs become black in dark mode, not full dark mode
  • Note editing removes indentation
  • Problem tags inconsistent with actual solutions
  • Label page freezes after continuous clicking
  • Code formatting is messy in notes after saving
  • Issues with membership verification across devices

Requested features

24 requests
  • Add more iOS technical upgrades
  • Add filter options for algorithms (e.g., top 100, top 200)
  • Allow users to write their own notes for algorithms
  • Add JavaScript examples
  • Allow users to suggest/edit explanations (wiki-like)
Show 19 more
  • Add settings option with restore purchase based on user level
  • Add account system for syncing notes across devices
  • Add search functionality by keyword
  • Add search functionality by problem number
  • Add difficulty selection for tags
  • Add time and space complexity for solutions
  • Remember last viewed problem in company-categorized lists
  • Add tab button for coding
  • Add solution ideas/approaches
  • Add comments to problems for beginners
  • Add filter for marked as seen/unseen
  • Add more languages for implementations
  • Add PAT problem question bank
  • Add landscape mode for tablets or code viewing
  • Optimize responsive display for iPad Pro horizontal view
  • Add Chinese language option
  • Add more C++ solutions
  • Add more solutions overall
  • Optimize tag confirmation step

CodeMaster

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Leaflet for Swift&Algorithm

One-time1
  • Get Pro Version$0.99
3 purchases

CodeMaster

Subscriptions3
  • Weekly Membership3 Days trial$1.997 Days
  • Monthly subscription3 Days trial$3.991 Month
  • Annual Subscription3 Days trial$20.991 Year

Questions

Is Leaflet for Swift&Algorithm free?
Leaflet for Swift&Algorithm is free to download, with in-app purchases available.
Is CodeMaster free?
CodeMaster is free to download, with in-app purchases available.
Which has better reviews, Leaflet for Swift&Algorithm or CodeMaster?
Leaflet for Swift&Algorithm and CodeMaster are both rated 4.6 out of 5 on the App Store, from 297 and 140 ratings respectively.
Do Leaflet for Swift&Algorithm or CodeMaster have ads?
Neither Leaflet for Swift&Algorithm nor CodeMaster shows ads.
Which is updated more often, Leaflet for Swift&Algorithm or CodeMaster?
Leaflet for Swift&Algorithm ships an update every 8 days, and CodeMaster monthly. Most recently, Leaflet for Swift&Algorithm was updated on October 4, 2026 and CodeMaster on October 2, 2026.

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