
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.

QuikNode.io
Moralis
CoinGecko
OpenSea
thirdweb
ChainGPT
Alchemy Supernode
SimpleHash allows web3 developers to query NFT data from a single API.
Which is more popular?
Based on our record, CheckIO seems to be a lot more popular than SimpleHash. While we know about 46 links to CheckIO, we've tracked only 2 mentions of SimpleHash.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | simplehash.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
No analysis of SimpleHash yet.
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
How they built multichain NFT API | Olly Wilson, Co-Founder @ SimpleHash | Web3 Talks #37
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and SimpleHash. 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 SimpleHash 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
Let's see how we can solve this using NextJS's getServerSideProps and an NFT indexing service SimpleHash that provides great coverage and handles caching and serving cached images specifically for OpenGraph usage in the NFT data they... - Source: dev.to / about 3 years ago
You've got a few options depending on how timely and accurate you want the data, and how much data you want. You can use a third-party service like Alchemy (OpenSea is listed as a client), Moralis, or Simplehash, but each of these have... Source: over 4 years ago
When comparing CheckIO and SimpleHash, you can also consider the following products.



Download and solve practice problems in over 30 different languages.
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Scalable, fast and robust web3 infrastructure to build dApps
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Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to CheckIO or SimpleHash:

CoinGecko is a free to use web-based and mobile application that provides financial market data for more than 2000 digital currencies.
Compare CoinGecko to CheckIO or SimpleHash: