
Codewars
LeetCode
Exercism
CodinGame
CodeCombat
HackerRank
Codecademy
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.

Handwrytten
LetterFriend
Felt for iPhone
Inkpact
Handwrite
Postable
Handwriting.io
Handwritten mailers stand out and grab attention. Send them as easily as a email.
Which is more popular?
Based on our record, CheckIO seems to be more popular. 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 | scribeless.co |
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| Company | — | 2020 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CheckIO yet.
We are a handwritten direct mail vendor that has facilities in the California, New York, the UK, Canada, and Europe. Thousands of companies trust us and our mailers to stand out in the postbox and use us to build personal relationships with prospects, partners and customers. Simply put,...
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 Scribeless yet.
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
Creating your first Scribeless campaign
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CheckIO and Scribeless.
Scribeless's answer:
Scribeless has the most sites of any vendor in the market, in New York, California, Canada, UK, and Europe. Localization is very important from a "realness" and cost perspective.
Scribeless's answer:
Price, customer service, and quality of product.
Share your experience with using CheckIO and Scribeless. 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 Scribeless 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
Tracking Scribeless since Mar 2021.
When comparing CheckIO and Scribeless, you can also consider the following products.


Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
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Practice and level up your development skills and prepare for technical interviews.
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Send armor-piercing handwritten letters more easily than email -- straight from Salesforce. Get around gatekeepers, get noticed -- upgrade your outreach.
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Download and solve practice problems in over 30 different languages.
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Handwritten cards for the modern world
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