Comparison

Leaflet for Swift&Algorithm vs DevTutor

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

DevTutor

Learn to build apps with SwiftUI using replicable code samples and real-time UI previews. Access official Swift documentation offline in English and Chinese, and explore third-party packages.

Highlights
  • Replicable code samples
  • Real-time UI previews
  • Offline Swift documentation (EN/ZH)
  • Third-party package exploration
  • SwiftUI learning resources
Features
Read full description

"DevTutor" is an application designed to assist developers in creating exceptional apps using SwiftUI. It offers replicable code samples and corresponding UI previews to streamline your coding process. Additionally, it includes local offline access to the official Swift Programming Language documentation in both Chinese and English. ——————————— ◈ Main Features ◈ ——————————— ■ Provide sample code that can be used directly in your project ■ View in real time how your code affects the appearance of the application ■ Provide official bilingual Chinese and English Swift programming language documentation for offline use ■ Explore a collection of third-party packages ■ And more features... ——————————— ◈ Policies & Terms ◈ ——————————— For Privacy Policy, please visit: https://wangchujiang.com/devtutor/privacy-policy.html For Terms of Service, please visit: https://wangchujiang.com/devtutor/terms-of-service.html ——————————— ◈ Contact Me ◈ ——————————— Contact us at kennyiseeyou@gmail.com if you have any problems or questions.

Screenshots

Leaflet for Swift&Algorithm4 screens
DevTutor4 screens

Verdict

The call

The clearest difference is rating: DevTutor at 5.0 against Leaflet for Swift&Algorithm's 4.6. DevTutor also leads on review sentiment (88% vs 71%) and iOS requirement (17.0 vs 26.0). Leaflet for Swift&Algorithm's advantage is ratings volume (297 vs 2) and update cadence (every 8 days vs every 2 weeks). 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. Leaflet for Swift&Algorithm sells 1 one-off in-app purchase and DevTutor sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DevTutor holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Leaflet for Swift&Algorithm has 297 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 71% of Leaflet for Swift&Algorithm's written reviews are positive against 88% of DevTutor's.

UpkeepUpdate frequency

Leaflet for Swift&Algorithm ships an update every 8 days, DevTutor every 2 weeks. Both last shipped on October 10, 2026.

Scorecard5 real differences · 5 level
Leaflet for Swift&Algorithm versus DevTutor: the parameters behind the verdict, then further details
ParameterLeaflet for Swift&AlgorithmDevTutor
PriceFreeFree
Rating4.6 (297 ratings)5.0 (2 ratings) — better
Positive reviews71.4% of reviews87.5% of reviews — better
Number of ratings297 — better2
Update frequencyEvery 8 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS26.017.0 — better
Further details — not scored
Size53 MB155 MB
Age rating4+4+
Developer雷 戴楚江 王

Customer experience

Leaflet for Swift&Algorithm

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

DevTutor

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

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

DevTutor

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

DevTutor

Subscriptions2
  • All Access Monthly$1.991 Month
  • All Access Annually$9.991 Year
One-time1
  • All Access Lifetime$49.99

Questions

Is Leaflet for Swift&Algorithm free?
Leaflet for Swift&Algorithm is free to download, with in-app purchases available.
Is DevTutor free?
DevTutor is free to download, with in-app purchases available.
Which has better reviews, Leaflet for Swift&Algorithm or DevTutor?
DevTutor is rated higher. Leaflet for Swift&Algorithm averages 4.6 out of 5 from 297 ratings, while DevTutor averages 5.0 from 2 ratings.
Do Leaflet for Swift&Algorithm or DevTutor have ads?
Neither Leaflet for Swift&Algorithm nor DevTutor shows ads.
Which is updated more often, Leaflet for Swift&Algorithm or DevTutor?
Leaflet for Swift&Algorithm ships an update every 8 days, and DevTutor every 2 weeks. Most recently, Leaflet for Swift&Algorithm was updated on October 10, 2026 and DevTutor on October 10, 2026.

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