
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.

Hours
Timezone.io
Timing
Timeglass
Toggl
Mr Wolf
Team Time Zone
Timelines is an app to track & visualize time.

Which is more popular?
Based on our record, CheckIO seems to be a lot more popular than Timelines. While we know about 46 links to CheckIO, we've tracked only 2 mentions of Timelines.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | timelines.app |
| Listed in |
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 Timelines 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 CheckIO and Timelines. 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 Timelines 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
A bit off-topic, but I have been searching extensively for exactly your Timelines app.[1] After listening to an episode of Hidden Brain, with guest Cassie Mogilner Holmes who studies the "illusion of time scarcity"[2], I've wanted to... - Source: Hacker News / almost 2 years ago
I also only do it in phases, because tracking itself costs time and energy. I found this app the best for tracking on iOS: https://timelines.app/. Source: over 3 years ago
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Practice and level up your development skills and prepare for technical interviews.
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Timing is the best way to keep track of the time you spend with your Mac.
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