
Codewars
Exercism
LeetCode
CodinGame
CodeCombat
HackerRank
Google's Python Class
CheckIO is a web site with a mission: To teach JavaScript and Python coding skills through a game-playing interface. It is designed to teach new skills or improve existing skills through completing challenges.

Cursor
Lovable
Swift
Swift Maker
SwiftUI
SwiftUI Inspector
Build SwiftUI apps for iOS, Apple Watch, iPad, and Mac—powered by AI. iSwift.dev is purpose-built for creating efficientswift files, the optimal language for Apple platforms. Instantly preview your SwiftUI views directly in the browser.
Which is more popular?
Based on our record, CheckIO seems to be more popular. It has been mentioned 46 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | checkio.org | iswift.dev |
| Pricing | — | |
| Company | — | Startup from the United States · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CheckIO yet.
iSwift.dev is an AI code builder for iOS apps and games. It generates code in SwiftUI, the native language of apps in iPhones, iPads, MacBooks & many other Apple products. How to create an app with iSwift.dev? 1. Write your prompt 2. Wait for AI to finish 3. Export the whole project to...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
Best AI for SwiftUI Apps - iSwift.dev
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and iSwift.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


CheckiO is a platform with coding games created for different levels of programmers, from beginners to advanced levels. Using fun and engaging methods, you can use coding games to solve challenges in TypeScript and...
CheckIO is available in English and Spanish. The platform was designed by a group of engineers and now has a number of customers all over the globe who may use it to improve their programming speed and abilities by...
Checkio is the most whimsical HackerRank alternative on this list. It’s also focused on two languages: Python and TypeScript. On this site you’ll be thrown into a gamer’s paradise that includes robot mollusks and...
We have no reviews of iSwift.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Have you heard of CheckIO (https://checkio.org/)? They have a gameified "Mario world" of coding challenges that are smaller and come with more explanation, tests to guide you through edge cases and provide hints. The challenges start... Source: almost 3 years ago
Cyber isn't gonna be a light switch, where you can flip it and be good. Don't be too hard on yourself. Start with some hands on stuff like https://tryhackme.com or checkio.org. You could look at certs like Security+ or CySA+ for some... Source: about 3 years ago
Much better to get your hands dirty than watching the videos. Try: https://checkio.org/. Source: over 3 years ago
Tracking iSwift.dev since Jul 2025.
When comparing CheckIO and iSwift.dev, you can also consider the following products.


The AI-first Code Editor. Build software faster in an editor designed for pair-programming with AI.
Compare Cursor to CheckIO or iSwift.dev:

Download and solve practice problems in over 30 different languages.
Compare Exercism to CheckIO or iSwift.dev:


Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to CheckIO or iSwift.dev:

Swift is a general-purpose, multi-paradigm, compiled programming language developed by Apple Inc. for iOS, macOS, watchOS, tvOS, Linux and z/OS.
Compare Swift to CheckIO or iSwift.dev: