# CodeMonkey: Algorithms Arena — Learn DSA by doing

> Learn DSA by doing (iPhone/iPad app by Luke Mclaughlin.)

- Source: https://appshunter.io/ios/app/codemonkey-algorithms-arena/id6793653047 (this page in markdown: same URL + `.md`)
- Developer: [Luke Mclaughlin](https://appshunter.io/developer/1893671036)
- Category: Education, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 13 MB
- Languages: American English
- Released: 2026-08-02
- Data updated: 2026-08-28
- User reviews in markdown: https://appshunter.io/ios/app/codemonkey-algorithms-arena/id6793653047/reviews.md

## What is CodeMonkey?

Algorithms Arena is a game-shaped data structures and algorithms course for technical interviews and computer science study.

WATCH, PREDICT, PERFORM
Every lesson is powered by a deterministic execution trace. Scrub through the animation, predict the next operation, then take control of the board and perform each compare, swap, visit, or table update yourself.

A COMPLETE PATTERN ROADMAP
Study 17 chapters spanning Big-O, arrays and hashing, two pointers, sliding windows, stacks and queues, binary search, linked lists, trees, tries, heaps, backtracking, graphs, dynamic programming, greedy algorithms, intervals, and bit manipulation.

BUILD INTERVIEW INTUITION
Use daily five-minute drills scheduled from the skills that need review. Learn to recognize patterns, assemble approaches, find edge cases, check invariants, and call time and space complexity under pressure.

RACE BIG-O
Compare growth curves, rank complexity classes, test an operation budget, and run capped native benchmarks on your own Apple device.

USE YOUR OWN DATA
Supply a bounded array, graph edge list, or string. Bundled offline algorithms generate a fresh visual trace locally—your input is data, never downloaded code.

MORE WAYS TO MASTER THE MATERIAL
• 280 enriched seven-stage lessons
• 900 animated traces across 100 canonical algorithms
• 1,600 interview drills across six formats
• 480 four-language complexity cases
• CodeBuild token exercises and 17 chapter boss battles
• Per-pattern ranks, XP, streaks, streak freezes, and crowns
• Sorting Gallery and optional Game Center leaderboards
• Pseudocode, Swift, Python, and JavaScript listings
• Apple Pencil scratch layer on iPad and keyboard controls on Mac

PRIVATE BY DESIGN
Algorithms Arena has no account, no advertising, no analytics, and no tracking. Course content and progress stay on your device. The complete course works offline.

One universal app for iPhone, iPad, and Mac.

SUBSCRIPTION AND TERMS
Pro is available as a monthly or annual auto-renewable subscription, with a seven-day annual trial for eligible new subscribers. A lifetime purchase is also available. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel in your Apple Account subscription settings.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.lukekevinmclaughlin.com/privacy


## Version history (last 2 releases)

### 1.0.1 — 2026-08-22

Algorithms Arena 1.0.1 makes Free and Pro choices clearer from the start, adds a one-tap Continue Free path, improves localized subscription pricing and free-trial messaging, and makes Restore Purchases and subscription management easier to find. Purchase verification and entitlement refresh now have expanded release testing across iPhone, iPad, and Mac.

### 1.0 — 2026-08-04

No release notes.

## More apps by Luke Mclaughlin

- [CodeMonkey: Learn to Code](https://appshunter.io/ios/app/codemonkey-learn-to-code/id6783108217)
- [Sparky Learn Languages](https://appshunter.io/ios/app/sparky-learn-languages/id6783108566)
- [Insightful: Learn Math](https://appshunter.io/ios/app/insightful-learn-math/id6787501553)
- [Pronunciation Master: Speak](https://appshunter.io/ios/app/pronunciation-master-speak/id6787513786)
- [Squiddy Constructing Language](https://appshunter.io/ios/app/squiddy-constructing-language/id6787675602)
- [Spider Notes: Mind Maps](https://appshunter.io/ios/app/spider-notes-mind-maps/id6787766534)

All apps by Luke Mclaughlin: https://appshunter.io/developer/1893671036

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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 2026-08-28.*