
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.

Commit Club
Commit Everyday
Commit: Track & Achieve Goals
Commit Together by Github
Keep your Github streak alive!
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 | gitstreak.com |
| Pricing | — | |
| Company | — | 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CheckIO yet.
Gitstreak is an email reminder service designed to help developers maintain their code contribution streaks by sending daily reminders to sync their code on GitHub.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
GitStreak.com - Keep Your Github Streak Alive
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CheckIO and GitStreak.
GitStreak's answer:
We don't get in the way. We're only here to support you.
GitStreak's answer:
PHP, TailwindCSS, Javascript
GitStreak's answer:
You only receive an email reminder when you haven't committed for the day, so you can maintain your streak.
GitStreak's answer:
Developers who want to improve their skills by coding daily.
GitStreak's answer:
Ever have that gut-punch moment when you lose a streak?
Yeah, me too.
GitStreak was born from a moment of frustration when I lost my GitHub contribution streak.
Not because I didn’t code, but because I simply forgot to sync.
It was the weekend and without my trusty Deskhub displaying my contribution graph on my office desk, it completely slipped my mind.
While I wouldn’t say I was heartbroken (that’s a bit dramatic), it was definitely a facepalm moment.
As someone who thrives on daily challenges and building new habits, I’ve learned that sometimes we all need a friendly nudge.
That’s exactly what I love about Duolingo — it keeps me accountable with timely reminders.
So I thought, “Why not create the same for fellow developers?”
GitStreak is exactly that: a simple email reminder service that helps you maintain your GitHub streak.
No bells, no whistles — just a friendly ping when you need it.
And the best part?
If you’ve already committed that day, we’ll stay quiet and let you bask in your productivity, keeping your inbox clutter-free.
Share your experience with using CheckIO and GitStreak. 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 GitStreak 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 GitStreak since Jan 2025.
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