# Code Complete: JS Practice — Exercises with real tests > Offline JavaScript coding practice with real tests and hints. (iPhone/iPad app by Vijay Sharma.) - Source: https://appshunter.io/ios/app/code-complete-js-practice/id1518395948 (this page in markdown: same URL + `.md`) - Developer: [Vijay Sharma](https://appshunter.io/developer/1084272338) - Category: Education, Developer Tools - Price: Free - Rating: 3.67/5 from 3 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 22 MB - Languages: American English - Released: 2020-07-08 - Data updated: 2026-11-03 - Monetization: free ## What is Code Complete? Code Complete is a free, offline place to practise writing JavaScript. Pick an exercise, read the problem, write your solution, and run it against real tests right on your device. You see which tests pass, what was expected and what your code returned, plus anything you logged to the console. 51 EXERCISES Arrays and matrices, strings, math, dynamic programming and search, data structures (linked lists, trees, sets, buffers, zippers) and graph and grid problems, from easy warm-ups to puzzles that take an evening. A REAL EDITOR • Syntax highlighting, line numbers and auto-indent • Straight quotes, always; no autocorrect getting in your way • Adjustable text size LEARN AT YOUR OWN PACE • Up to three progressive hints per exercise, from a nudge to the key idea • A reference solution when you want to compare approaches • Your code and progress are saved automatically RUNS ON YOUR DEVICE Your code runs in an isolated, on-device JavaScript sandbox. Infinite loops are stopped safely, and nothing is ever sent anywhere. PRIVATE AND FREE No account, no ads, no in-app purchases and no tracking. Code Complete collects no data. The exercises are adapted from the Exercism JavaScript track and used under the MIT License, with credit in the app. The hints are written for Code Complete. ## Key features - Offline JavaScript practice - Real-time code testing - Syntax highlighting editor - Progressive hints - Reference solutions - On-device sandbox ## Is Code Complete safe? Not enough ratings yet to assess Code Complete. ## Is Code Complete legit? Code Complete: JS Practice appears to be a legitimate app. The AppsHunter Legitimacy Score for Code Complete is 90 out of 100 points across 7 verification signals from App Store and developer data. ## Frequently asked questions about Code Complete ### What is Code Complete? Code Complete is a free, offline application designed for practicing JavaScript coding. It offers a real editor with syntax highlighting and allows users to run their code against tests directly on their device. ### Does Code Complete have ads? No, Code Complete is completely ad-free. The app is designed to provide a private and uninterrupted learning experience with no advertisements. ### Can I use Code Complete offline? Yes, Code Complete is an offline application. You can practice writing and testing JavaScript code without needing an internet connection. ### What kind of JavaScript exercises are available? Code Complete offers 51 exercises covering arrays, strings, math, dynamic programming, search, data structures like linked lists and trees, and graph problems, ranging from easy to challenging. ### Does Code Complete offer any learning support? Yes, Code Complete provides up to three progressive hints per exercise, from a simple nudge to the core idea. It also includes a reference solution for comparison. ### Is my code safe on Code Complete? Your code runs in an isolated, on-device JavaScript sandbox. Infinite loops are safely stopped, and your code is never sent anywhere, ensuring privacy and security. ### What devices does Code Complete support? Code Complete is available on Mac, iPhone, and iPad, allowing you to practice JavaScript coding across multiple Apple devices. ### How often is Code Complete updated? The latest version of Code Complete is 2.0, and it was last updated on October 21, 2026. This indicates a commitment to ongoing development and improvements. ## Version history (last 5 releases) ### 2.0 — 2026-10-21 Code Complete is back, rebuilt from scratch. • 51 new JavaScript exercises with tests that run on your device • Original progressive hints and reference solutions • A new editor with syntax highlighting, line numbers and auto-indent • Now on iPhone, iPad and Mac • Completely free: no account, ads or in-app purchases, and no data collected ### 1.7 — 2020-10-28 NEW! Added Design questions to help improve your interview preparation! ### 1.6 — 2020-08-28 * Added Onboarding view * Added ability to pause and resume timer ### 1.5 — 2020-08-14 * Unlocked new questions * Copy solutions into your solutions with one tap ### 1.4 — 2020-08-11 * Improved mobile experience * Stop code execution if it takes more than 5 seconds ## More apps by Vijay Sharma - [The Question Wheel](https://appshunter.io/ios/app/the-question-wheel/id1084272339) - [Princess Colouring Book](https://appshunter.io/ios/app/princess-colouring-book/id1507814621) - [Moodlight!](https://appshunter.io/ios/app/moodlight/id1509079068) - [Colouring Superheroes](https://appshunter.io/ios/app/colouring-superheroes/id1511421866) - [Tactile Haptics Studio](https://appshunter.io/ios/app/tactile-haptics-studio/id6809246232) All apps by Vijay Sharma: https://appshunter.io/developer/1084272338 --- *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 2026-11-03.*