
Codewars
Exercism
LeetCode
CodinGame
CodeCombat
HackerRank
Codecademy
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.

Buddy
CircleCI
Jenkins
Limestone Networks
Codeship
Codero
DeployBot
Everything you need to run your code on any cloud.

Which is more popular?
Based on our record, CheckIO seems to be a lot more popular than Cloud 66. While we know about 46 links to CheckIO, we've tracked only 4 mentions of Cloud 66.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | cloud66.com |
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In their own words, as submitted to SaaSHub.


No description of CheckIO yet.
Cloud 66 gives you everything you need to build, deploy and maintain your applications on any cloud, without the headache of dealing with "server stuff". With the convenience of PaaS but on any cloud, and in any region, Cloud 66 has persistent storage, custom network configuration, zero downtime...
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
Cloud 66 is recommended for small to medium-sized development teams, particularly those working with Rails, Node.js, containerized applications, or microservices. It's a great fit for organizations looking to streamline their DevOps processes, improve deployment efficiency, and leverage cloud infrastructure without investing heavily in in-house DevOps expertise.
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
Cloud 66 in under 90 seconds
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and Cloud 66. 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 Cloud 66 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
You can deploy and manage any application (Rails, Jamstack, Containers) on any cloud with cloud66.com. Source: about 4 years ago
If you want some oomph and production-quality stuff, bring your own hardware to hatchbox.io or cloud66.com. Source: about 4 years ago
Https://cloud66.com is the best alternative that runs on your own cloud and is native for Rails apps. - Source: Hacker News / over 4 years ago
When comparing CheckIO and Cloud 66, you can also consider the following products.


The simplest CI/CD tool ever made, acclaimed by top developers worldwide. It uses delivery pipelines to build, test and deploy software. Pipelines are created with over 100 ready-to-use actions, that can be arranged in any way.
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Download and solve practice problems in over 30 different languages.
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CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Compare CircleCI to CheckIO or Cloud 66:

Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to CheckIO or Cloud 66:

Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
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