CodeMonkey: Algorithms Arena
Learn DSA by doing
Free · In‑App Purchases
Don’t memorize algorithms. Drive them with interactive traces, daily interview drills, and real Big-O races.
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 an auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the current period. You can manage your subscription and turn off auto-renewal in your Apple Account settings after purchase. Any unused portion of a free trial is forfeited when you purchase a subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.lukekevinmclaughlin.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Luke Mclaughlin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Luke Mclaughlin
- Size
- 13.7 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Infrequent
Contests
- In-App Purchases
Yes
- Algorithms Arena Pro Lifetime $79.99
- Algorithms Arena Pro Annual $39.99
- Algorithms Arena Pro Monthly $6.99
- Copyright
- © 2026 Luke McLaughlin
