Leaflet for Swift&Algorithm vs My Device Identifiers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Swift language tutorials
- SwiftUI and Combine development
- Data structure and algorithm learning
- Micro-classes for core concepts
- Code style guide
- Algorithm problem-solving examples
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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.
My Device Identifiers
This app allows users to view and copy device identifiers like IDFA and IDFV. It leverages ATT (AppTrackingTransparency) for this functionality. Useful for developers and those interested in app tracking.
- View IDFA
- View IDFV
- Copy device identifiers
- Utilizes AppTrackingTransparency (ATT)
- Developer tool
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Experiment with ATT (AppTrackingTransparency) to view and copy device identifiers such as the IDFA and IDFV.
Screenshots
Verdict
The clearest difference is rating: Leaflet for Swift&Algorithm at 4.6 against My Device Identifiers's 4.0. Leaflet for Swift&Algorithm also leads on ads (none vs shown) and update cadence (every 6 days vs monthly). My Device Identifiers's advantage is in-app purchases (none vs 1) and review sentiment (85% vs 71%). On price and device support 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
Both are free to download. Leaflet for Swift&Algorithm sells 1 one-off in-app purchase. My Device Identifiers asks for nothing beyond the download.
Leaflet for Swift&Algorithm holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Leaflet for Swift&Algorithm has 297 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 71% of Leaflet for Swift&Algorithm's written reviews are positive against 85% of My Device Identifiers's, so the app with the better star average is not the one people write more warmly about.
Leaflet for Swift&Algorithm ships an update every 6 days, My Device Identifiers monthly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.
| Parameter | Leaflet for Swift&Algorithm | My Device Identifiers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (297 ratings) — better | 4.0 (8 ratings) |
| Positive reviews | 71.4% of reviews | 84.6% of reviews — better |
| Number of ratings | 297 — better | 8 |
| Update frequency | Every 6 days — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | 雷 戴 | Kochava |
Customer experience
Leaflet for Swift&Algorithm
My Device Identifiers
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
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- 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)
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- 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
My Device Identifiers
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Leaflet for Swift&Algorithm
- Get Pro Version$0.99
My Device Identifiers
No in-app purchases
Questions
Is Leaflet for Swift&Algorithm free?
Is My Device Identifiers free?
Which has better reviews, Leaflet for Swift&Algorithm or My Device Identifiers?
Do Leaflet for Swift&Algorithm or My Device Identifiers have ads?
Which is updated more often, Leaflet for Swift&Algorithm or My Device Identifiers?
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