# Code Patterns — Master coding algorithms fast

> Interactive platform for mastering coding algorithms with gamified challenges and AI battles. (iPhone/iPad app by Kevin Li.)

- Source: https://appshunter.io/ios/app/code-patterns/id6752111810 (this page in markdown: same URL + `.md`)
- Developer: [Kevin Li](https://appshunter.io/developer/1837894748)
- Category: Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 18.5 · 5 MB
- Languages: American English
- Released: 2025-09-08
- Data updated: 2026-06-01
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/code-patterns/id6752111810/reviews.md

## What is Code Patterns?

**Transform Your Coding Skills**
Turn complex algorithms into digestible, interactive challenges. Whether you're preparing for technical interviews or strengthening your programming foundation, CodePatterns makes mastering algorithms engaging and effective.

**Real-Time Battle Mode**
Challenge AI opponents in thrilling coding battles! Test your algorithmic knowledge under pressure with our unique real-time competition system featuring realistic opponents with varying skill levels.

**Smart Learning System**
- **Adaptive Retry System**: Focus on questions you've missed until you master them
- **Progress Tracking**: Detailed analytics show your improvement over time  
- **Achievement System**: Unlock badges as you progress through different categories
- **Personalized Recommendations**: AI-driven suggestions based on your performance

**Comprehensive Algorithm Coverage**
- Arrays & Hashing
- Two Pointers & Sliding Window
- Stacks & Queues
- Binary Search & Trees
- Dynamic Programming
- Graphs & Advanced Algorithms
- Time & Space Complexity Analysis

**Gamified Experience**
- Level progression system
- Daily streak tracking
- Points and XP rewards
- Competitive leaderboards
- Achievement badges

**Beautiful, Intuitive Design**
Clean, minimalist interface focused on learning. Optimized for both iPhone and iPad with seamless navigation and engaging animations.

**Perfect for:**
- Computer Science students
- Software engineering interview prep
- Coding bootcamp graduates
- Professional developers looking to sharpen skills
- Anyone passionate about algorithmic thinking

Start your journey to algorithmic mastery today!

Terms of Use: https://kevli1004.github.io/CodePatterns/terms_of_service.html

## Key features

- Interactive algorithm challenges
- Real-time AI coding battles
- Adaptive retry system
- Progress tracking and analytics
- Gamified learning with rewards
- Comprehensive algorithm coverage

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Monthly Subscription | $4.99 | per month |



## Frequently asked questions about Code Patterns

### What is Code Patterns?

Code Patterns is an educational app designed to help users master coding algorithms through interactive challenges and gamified learning experiences. It offers features like real-time AI battles and progress tracking.

### How does Code Patterns help with interview preparation?

Code Patterns focuses on strengthening your programming foundation and mastering complex algorithms, which are crucial for technical interviews. The app provides comprehensive coverage of common algorithm topics and challenges.

### What learning methods does Code Patterns use?

Code Patterns employs a smart learning system that includes an adaptive retry system to focus on missed questions, detailed progress tracking, and personalized AI-driven recommendations based on user performance.

### Does Code Patterns have ads?

No, Code Patterns does not contain advertisements, offering an uninterrupted learning experience for its users.

### What algorithms are covered in Code Patterns?

The app covers a wide range of algorithms including Arrays & Hashing, Two Pointers & Sliding Window, Stacks & Queues, Binary Search & Trees, Dynamic Programming, Graphs & Advanced Algorithms, and Time & Space Complexity Analysis.

### What is the pricing for Code Patterns?

Code Patterns is free to download and use. It offers an optional 'Premium Monthly Subscription' for $4.99 per month, providing enhanced features.

### What devices is Code Patterns available on?

Code Patterns is optimized for both iPhone and iPad, offering a seamless and intuitive design across Apple devices.

### How often is Code Patterns updated?

The latest version of Code Patterns is 1.2, and it was last updated on September 20, 2025. Updates typically include new features, bug fixes, and performance improvements.

## Version history (last 3 releases)

### 1.2 — 2025-09-20

Minor UI Updates

### 1.1 — 2025-09-16

Added additional problem sets

### 1.0 — 2025-09-09

No release notes.

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## More apps by Kevin Li

- [VocabularyVault](https://appshunter.io/ios/app/vocabularyvault/id6752018065)
- [Tots: Newborn Baby Tracker](https://appshunter.io/ios/app/tots-newborn-baby-tracker/id6752828411)

All apps by Kevin Li: https://appshunter.io/developer/1837894748

## Related topics

[kexin li](https://appshunter.io/ios/topics/kexin-li)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*