
Codecademy
Exercism
Treehouse
edX
LeetCode
Coursera
Pantheon
Achieve code mastery through challenge.

Growth.Design Case Studies
Mobbin
Muz.li
Uxcel
Weekly UX Exercise
Refero Design
Talks by UI Patterns
A collection of UX case studies

Which is more popular?
Based on our record, Codewars seems to be a lot more popular than Built for Mars. While we know about 160 links to Codewars, we've tracked only 7 mentions of Built for Mars.
Website, pricing, platforms and company facts side by side.
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| Website | codewars.com | builtformars.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
Codewars is recommended for beginner to advanced programmers who enjoy learning through practice and are interested in improving their algorithmic thinking and coding skills in a gamified environment. It is particularly beneficial for those preparing for coding interviews or seeking to reinforce their programming knowledge in a fun and interactive way.
No analysis of Built for Mars yet.
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 Codewars and Built for Mars. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Edabit offers a learning experience similar to learning a new language, focusing on smaller and more frequent exercises that build proficiency over time. Like Codewars, Edabit provides many challenges that increase in...
In conclusion, while Leetcode remains a valuable resource for coders, the platforms listed above offer varied approaches to learning and improving coding skills. Whether you're drawn to the gamified learning...
This LeetCode alternative has excellent features for anyone looking to sharpen their coding skills. Codewars uses kata, which are small coding exercises that are community developed to help you master your language of...
We have no reviews of Built for Mars yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Recently, I was working on a coding kata on codewars.com. Early on, I started thinking that a potential solution might utilize recursion, a concept that involves a function calling itself. However, I quickly realized that my grasp of... - Source: dev.to / almost 3 years ago
Get more involved. Look into internships and junior SWE positions to get a sample of what you'd be applying for once you graduate. Solve coding challenges, start working on a portfolio of your personal works. I recommend codewars.com for... Source: almost 3 years ago
I'd recommend to play around with some basic coding challenges on leetcode.com or codewars.com. If the course prepared you well you won't find this useful, but playing around with them will make sure that you are comfortable with basics... Source: about 3 years ago
Maybe I’m looking in the wrong places but I’m tired of seeing numbered lists of “Design trends to look out for in 202X” with 4 sentences of text between them. I crave longer forms of writing that explains the design aspect of this field.... Source: over 3 years ago
Some other recommendations: Don’t Make me Think and Rocket Surgery Made Easy by Steve Krug https://builtformars.com/ UX case studies https://www.nngroup.com/ UX analyses and articles Coursera has some UX courses you can audit for free. - Source: Hacker News / over 3 years ago
Consider that even if you don't have a big portfolio of work, you can do analysis of existing apps / websites / experiences, even a game. Take a look at the case studies here: https://builtformars.com/. Source: almost 4 years ago
When comparing Codewars and Built for Mars, you can also consider the following products.

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Product tips… in a comic book format
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Download and solve practice problems in over 30 different languages.
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Latest mobile design patterns & elements library
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Treehouse is an award-winning online platform that teaches people how to code.
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