# Codable: Code Challenges — Master Programming by Practice > Practice programming challenges in 10 languages to build coding fluency. (iPhone/iPad app by Intrepid Reality, LLC.) - Source: https://appshunter.io/ios/app/codable-code-challenges/id6787467242 (this page in markdown: same URL + `.md`) - Developer: [Intrepid Reality, LLC](https://appshunter.io/developer/1755278398) - Category: Developer Tools, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 3 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 26 · 3 MB - Languages: American English - Released: 2026-07-30 - Data updated: 2026-09-12 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/codable-code-challenges/id6787467242/reviews.md ## What is Codable? Codable turns programming practice into a habit. Solve focused challenges in ten languages — from your first data structure to lock-free concurrency — and build real fluency one problem at a time. WRITE REAL CODE IN 10 LANGUAGES C, C++, C#, Go, Java, JavaScript, Python, Rust, Swift, and TypeScript. Switch languages anytime — solve the same challenge in Python today and Rust tomorrow. GO DEEPER THAN SYNTAX Challenges span the topics that actually make you a better engineer: • Fundamentals and string manipulation • Data structures and algorithms • Recursion and functional programming • Object-oriented design and generics • Error handling, concurrency, and memory management BUILT FOR EVERY STAGE New to programming? Start with fundamentals and level up steadily. Experienced? Jump straight into concurrency, memory management, and the problems that show up in technical interviews. PRACTICE THAT STICKS Short, focused challenges designed to fit into a daily routine — because fluency comes from reps, not marathons. Download Codable and start mastering your chosen language! ## Key features - Solve coding challenges in 10 languages - Practice data structures and algorithms - Master concurrency and memory management - Build fluency with daily focused practice - Suitable for all skill levels - Switch between programming languages ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Codable Pro | $4.99 | per month | | Codable Pro | $29.99 | per year | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/codable-code-challenges/id6787467242/reviews.md ### 5/5 — Awesome Code Learning Tool! *2026-09-10* I use this to get better at Swift! What is nice is you can customize what kind of code challenge it will give you. I also like how you can copy the code challenge over into Xcode and come up with your solution. If your solution is wrong it will give you its solution. Not all solutions are the same. I use it on Mac along with Xcode. I highly recommend upgrading to Pro as you get unlimited tries per day! Check it out, you will love and best of all, you will LEARN! ### 5/5 — Clear, Concise & Effective. *2026-08-04* The Foundation models are awesomely powerful, and this app gives that power a context that results in actual learning. ### 5/5 — Great app! *2026-07-30* This is a nice little on-device training app for programmers! I like that the UI is easy and straightforward, and that you get up to 3 free challenges a day, delivered in nice little bite-sized pieces. It even has a history section so you can go back and look at your previous attempts. I’ll be using this daily to brush up on my data structures, algos, concurrency usage, and more. Thank you dev! ## Frequently asked questions about Codable ### What programming languages does Codable support? Codable supports C, C++, C#, Go, Java, JavaScript, Python, Rust, Swift, and TypeScript, allowing you to practice in your preferred language. ### Is Codable free to use? Codable is free to download and use, with optional 'Codable Pro' subscription plans available for enhanced features. The app is free with in-app purchases for premium features. ### What kind of programming topics does Codable cover? Codable covers a wide range of topics, including fundamentals, data structures, algorithms, recursion, functional programming, object-oriented design, error handling, concurrency, and memory management. ### Who is the target audience for Codable? Codable is designed for everyone from beginners learning their first programming concepts to experienced developers looking to refine their skills in advanced areas and prepare for technical interviews. ### How often is Codable updated? Codable was last updated on July 30, 2026, with version 2026.1. The app is released on July 30, 2026, indicating a recent release and potential for future updates. ### What devices are compatible with Codable? Codable is available on macOS, iPhone, and iPad, allowing you to practice your coding skills across multiple Apple devices. ### Does Codable have ads? No, Codable does not contain advertisements. The app is ad-free, allowing for an uninterrupted learning experience. ### What are the subscription options for Codable Pro? Codable Pro offers a monthly subscription for $4.99 with a 7-day free trial, and an annual subscription for $29.99 with a 14-day free trial. ## Version history (last 5 releases) ### 2026.7 — 2026-09-05 This update contains bug fixes and performance improvements. ### 2026.6 — 2026-08-14 This update contains bug fixes and performance improvements. ### 2026.5 — 2026-08-08 This update contains bug fixes and performance improvements. ### 2026.4 — 2026-08-06 Minor enhancements and bug fixes to keep things running smoothly. ### 2026.3 — 2026-08-03 Improved Python code formatting and challenge generation. ## More apps by Intrepid Reality, LLC - [Reframe: Video Annotation](https://appshunter.io/ios/app/reframe-video-annotation/id6748615625) - [Martian Attack](https://appshunter.io/ios/app/martian-attack/id6759349472) - [Stonewalker: Maze Puzzle](https://appshunter.io/ios/app/stonewalker-maze-puzzle/id6762490563) All apps by Intrepid Reality, LLC: https://appshunter.io/developer/1755278398 ## Related topics [codable](https://appshunter.io/ios/topics/codable) --- *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 2026-09-12.*