
Scratch
Codecademy
Free Code Camp
Hacker News
W3Schools
Tutorialspoint
SoloLearn
Code.org is a non-profit whose goal is to expose all students to computer programming.

Anki
Quizlet
MemoRep
study-lingo.com
FlipToMind
Memrise
AnkiApp
Train your memory with a science backed spaced repetition flashcard app built around active recall.

Which is more popular?
Based on our record, Code.org seems to be more popular. It has been mentioned 385 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | code.org | spacerepeat.com |
| Pricing | — | |
| Company | 2012 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Code.org yet.
Spacerepeat helps you remember what you learn. Create simple flashcards for any topic and review them over time using spaced repetition, a method that schedules reviews so information stays fresh in your memory. Study a little each day and build knowledge that lasts.
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
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Walkthroughs and reviews on video.
Programming For Kids: Scratch vs Code.org
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Code.org and Space Repeat.
Space Repeat's answer:
Space Repeat removes everything that distracts from actual learning: no feature overload. It focuses purely on active recall and spaced repetition, the two techniques with the strongest scientific backing for long-term memory.
Space Repeat's answer:
Most study apps optimize for engagement, not retention. Space Repeat is intentionally minimal. It shows you cards exactly when you're about to forget them, adapts to how hard each card is for you, and tracks your retention over time. The free plan is fully usable with no tricks.
Space Repeat's answer:
Students who want to remember what they study for the long-term, especially those preparing for exams or learning large amounts of material over time.
Space Repeat's answer:
I'm a student myself. I tried the flashcard apps that already exist, but none of them felt right. Some were too flashy, packed with features I didn't need. Others were too bare-bones, with free plans so limited they were barely usable. I wanted something in the middle: a focused app that does a few things really well, with no distractions and a free plan you can actually use.
Share your experience with using Code.org and Space Repeat. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Code.org is an online marketplace that can empower students, specifically students, to get detailed knowledge regarding the principles of the computer sciences. This platform can let its users access the free coding...
Nevertheless, the platform has the stats to prove its dependability. More than 67 million people use Code.org, including over two million teachers. In addition, the platform records over 208 million projects so far.
Code.org is much easier to use than Thunkable.First of all names say everything.Second,it has more modes than just "drag-and-drop".
We have no reviews of Space Repeat yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Code.org uses an extremely outdated version of javascript, It's so hard to access data in array, im basically forced to do this. Cant wait to ditch this shit. Source: almost 3 years ago
I'm not sure if your 4.5yo is old enough to try Scratch[1] but nothing is too young these days. My elder got into Scratch around that time. These days, my younger one is into https://code.org and she make things go around, do stuffs,... - Source: Hacker News / almost 3 years ago
So I am using code.org to make a platforming game, and if I am halfway off of a platform I slide off of it. Idk if this is a quirk with code.org or if I did something wrong. You can check the hitboxes by pressing debug sprites in the... Source: almost 3 years ago
Tracking Space Repeat since Mar 2026.
When comparing Code.org and Space Repeat, you can also consider the following products.

Scratch is the programming language & online community where young people create stories, games, & animations.
Compare Scratch to Code.org or Space Repeat:

Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
Compare Anki to Code.org or Space Repeat:

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.
Compare Codecademy to Code.org or Space Repeat:

Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
Compare Quizlet to Code.org or Space Repeat:

Learn to code by helping nonprofits.
Compare Free Code Camp to Code.org or Space Repeat:

Spaced repetition that emails you when it’s time to review.
Compare MemoRep to Code.org or Space Repeat: