
Brave
Google Chrome
Mercury
Sidekick Browser
Brex
Safari
Orion Browser
This new web browser is going to kill Chrome

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.

Which is more popular?
Based on our record, Arc should be more popular than CheckIO. It has been mentioned 77 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | arc.net | checkio.org |
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What each product offers, as listed by its team.


Possible disadvantages
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.
How often each product is chosen within a category, 0–100% relative to the other.


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


Arc comes equipped with plenty more productivity-focused tools, too. Its built-in universal search function allows you to instantly jump to a tab or find and execute a shortcut. Plus, you can have up to four tabs in a...
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...
Recommendations tracked on public social media and blogs since March 2021.


Because both are trying to be response to the death of Browser Company's Arc. (https://arc.net). - Source: Hacker News / 9 months ago
Arc was first recommended to me by a fellow dev. It felt like the browser I was looking for but never quite found. The Browser Company released this trendsetter in 2023, and among the frontend and tech community it quickly became the new... - Source: dev.to / 10 months ago
Arc was first recommended to me by a fellow developer, and it immediately felt like the browser I’d always wanted but never quite found. I’m a sucker for clean interfaces, and as both a frontend developer and a designer, I notice the... - Source: dev.to / over 1 year ago
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
When comparing Arc and CheckIO, you can also consider the following products.



Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.
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Download and solve practice problems in over 30 different languages.
Compare Exercism to Arc or CheckIO:


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