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

Retool
NoCode.tech
Softr
Pory
ToolJet
Airtable
No-Code Coffee
No-Code internal tools powered by Airtable, GSheets + more

Which is more popular?
Based on our record, Codewars seems to be a lot more popular than Stacker. While we know about 160 links to Codewars, we've tracked only 7 mentions of Stacker.
Website, pricing, platforms and company facts side by side.
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| Website | codewars.com | stackerhq.com |
| Pricing | ||
| Company | — | Startup from the United States · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Codewars yet.
Stacker is a no-code platform that lets teams build secure, data-driven apps and internal tools using their existing spreadsheets or databases—no engineering required.
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.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Codewars Review & Tips
More videos
No Stacker 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 Codewars and Stacker. 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...
You can create an app in minutes. Thanks to Stacker’s handy template library, you can create your app in practically no time at all. Simply plug in your existing data sources and your app will be up and running in a...
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
I prepeared this comparison table for my own clients, featuring Glide, Stacker, Noloco, Softr. Source: over 3 years ago
What we use at a series B startup that actually helps our sales & customer service teams leverage Airtable without needing engineers 1. Stacker: No-code software builder tool on top of Airtable. Build internal tools for user-facing... - Source: Hacker News / over 3 years ago
You could and probably should build your own portal using: Noloco, Stacker, Glide. Source: over 3 years ago
When comparing Codewars and Stacker, you can also consider the following products.

Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.
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Download and solve practice problems in over 30 different languages.
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Free tools & resources for non-tech makers and entrepreneurs
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Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to Codewars or Stacker:
