
Auth0
Okta
OneLogin
Atlassian Crowd
Amazon Cognito
Google Cloud IAM
Ping Identity
Flexible authentication solution for Rails with Warden.

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?
Devise might be a bit more popular than CheckIO. We know about 47 links to it since March 2021 and only 46 links to CheckIO.
Website, pricing, platforms and company facts side by side.
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| Website | github.com | 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
Devise is recommended for Ruby on Rails developers looking for a well-established and comprehensive authentication library. It's suitable for projects of various sizes, from startups to enterprise-level applications, particularly when rapid development with standard authentication features is desired.
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 Devise 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.


We have no reviews of Devise yet. Be the first one to post
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.


ActiveRubyist is now a Progressive Web App (PWA) with Hotwire-based interactivity. For authentication, I use devise, and for real-time notifications, noticed. Where possible, I lean into default Rails features: for background jobs, I use... - Source: dev.to / over 1 year ago
Assume we use devise for authentication. We need to subscribe user for personal notifications channel. Add this line to app/views/layouts/application/_flash_container.html.erb. - Source: dev.to / over 2 years ago
If you like to know how to implement Devise for user authentication, here's the link- Devise. - Source: dev.to / about 2 years 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 Devise and CheckIO, you can also consider the following products.

Auth0 is a program for people to get authentication and authorization services for their own business use.
Compare Auth0 to Devise or CheckIO:


Enterprise-grade identity management for all your apps, users & devices
Compare Okta to Devise or CheckIO:

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

On-demand SSO, directory integration, user provisioning and more
Compare OneLogin to Devise or CheckIO:

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