Leaflet for Swift&Algorithm vs InterviewGenie
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.
InterviewGenie
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Interview Genie: Your AI-Powered React Interview Coach Interview Genie is the all-in-one training ground built by developers, for developers. Stop passively reading and start actively preparing with a suite of powerful tools tailored to sharpen your React, JavaScript, TypeScript, and front-end architecture skills—so you can build confidence and land your next React role. Whether you’re a junior developer preparing for your first React interview or a senior engineer aiming for a lead position, Interview Genie adapts your learning path to focus on what really matters—React fundamentals, hooks, state management, performance optimization, component design, testing, and real-world coding challenges. AI-Powered Mock Interviews • Engage with an AI Coach in realistic interview sessions via text or voice • Receive instant, detailed feedback across Clarity, Correctness, and Depth • Use consumable AI credits to analyze your answers and improve faster On-Device AI Processing • AI inference is performed directly on your device for faster, low-latency feedback • Reduces round-trip delays while keeping sensitive input processing local • Designed for efficient, native performance Intelligent Spaced Repetition (SRS) • Daily Review: Smart scheduling resurfaces questions at the right time for long-term retention • Buggy Code Review: Daily sessions focused on identifying and fixing common React and JavaScript issues Customizable Drills & Practice • Simulate real interview pressure with timed Performance Drills • Practice freely in the Practice Arena (untimed) • Customize sessions by question type (MCQ or open-ended), difficulty, and React-specific topics Comprehensive Study Guide • Deep dives into React fundamentals, hooks, lifecycle patterns, state management, performance, testing, and system design • Each topic includes explanations, best practices, examples, and common interview mistakes Widgets for Daily Tracking • Daily review and progress widgets to track your preparation at a glance • Monitor streaks, completed drills, and performance without opening the app Detailed Analytics & History • Review performance across all sessions in one place • Track accuracy, speed, and consistency with clear insights • Filter by topic or session type to identify gaps and blind spots Competitive Progress Tracking • Compare progress across drills and mock interviews • Track improvement over time and stay motivated Unlock Everything with a Subscription • Full access to the React Study Guide • Unlimited drills and topic-based practice • Daily SRS and Buggy Code sessions • AI credits for coaching and feedback • Option to purchase additional AI credits Stop memorizing. Start understanding. Download Interview Genie and take control of your interview preparation today.
Screenshots
Verdict
The clearest difference is update cadence: Leaflet for Swift&Algorithm at every 6 days against InterviewGenie's every 5 months. InterviewGenie's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases 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 and InterviewGenie sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Leaflet for Swift&Algorithm ships an update every 6 days, InterviewGenie every 5 months. Both last shipped on September 21, 2026.
| Parameter | Leaflet for Swift&Algorithm | InterviewGenie |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (297 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 297 — better | — |
| Update frequency | Every 6 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | 雷 戴 | Abhinav Jha |
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
InterviewGenie
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Leaflet for Swift&Algorithm
- Get Pro Version$0.99
InterviewGenie
- Coach Top-Up$1.99
- Drill Top-Up$1.99
- Lite Pack$3.99
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- Unlock All Access$5.99
- On-Device AI Pack$7.99
- Unlock + AI Lite$8.99
- Plus Pack$8.99
- Unlock + On-Device AI$12.99
- AI Max + Free Unlock$14.99
- Max Pack$14.99
Questions
Is Leaflet for Swift&Algorithm free?
Is InterviewGenie free?
Do Leaflet for Swift&Algorithm or InterviewGenie have ads?
Which is updated more often, Leaflet for Swift&Algorithm or InterviewGenie?
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