
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.

Fathom Analytics
Simple Analytics
Plausible.io
Microsoft Clarity
Usermaven
Pirsch Analytics
micro-analytics
Self-hosted analytics, heatmaps & session recordings.

Which is more popular?
Based on our record, CheckIO should be more popular than 66Analytics. It has been mentioned 46 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | 66analytics.com |
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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.
Intro Video. How to get maximum from CheckiO
No 66Analytics videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and 66Analytics. 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 66Analytics 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
66analytics offers features such as real-time analytics, conversion tracking, heat maps, session recordings, and data ownership. This data visualization tool gives you a complete picture of your product—everything that marketing, UX, or... - Source: dev.to / over 1 year ago
Looks like this is a fork of https://66analytics.com/? One of Altumcodes products? - Source: Hacker News / almost 2 years ago
Last year I stumbled upon https://66analytics.com/ and liked it quite a lot. It is very light but covers quite a lot of stuff that I wanted to have. It’s a one time payment but only around $60 I think and does not have any limitations... Source: almost 5 years ago
When comparing CheckIO and 66Analytics, you can also consider the following products.


Simple, trustworthy website analytics (finally)
Compare Fathom Analytics to CheckIO or 66Analytics:

Download and solve practice problems in over 30 different languages.
Compare Exercism to CheckIO or 66Analytics:

The privacy-first Google Analytics alternative located in Europe.
Compare Simple Analytics to CheckIO or 66Analytics:

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

Plausible Analytics is a simple, open-source, lightweight (< 1 KB) and privacy-friendly web analytics alternative to Google Analytics. Made and hosted in the EU, powered by European-owned cloud infrastructure 🇪🇺
Compare Plausible.io to CheckIO or 66Analytics: