
Scrimba
Codédex
GoIT LMS
Codelita
Data Protocol
codedamn
JavaScript.com
Programming exercises for experienced engineers.

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, CodeCrafters seems to be more popular. It has been mentioned 11 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codecrafters.io | spacerepeat.com |
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In their own words, as submitted to SaaSHub.


No description of CodeCrafters 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.


No features have been listed yet.
An editorial look at what each product does well and who it suits.


No analysis of CodeCrafters yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Learn to Build Real Software With CodeCrafters
More videos
No Space Repeat videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeCrafters 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 CodeCrafters and Space Repeat. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Sometime ago, I decided to embark on a new endeavor, I was curious about how shell works, and came across the the codecrafters.io build your own shell challenge, and thought this is a good opportunity for me to learn shell, as well as... - Source: dev.to / 13 days ago
Submitting with git push also exists at CodeCrafters, for code you write from scratch. - Source: dev.to / 23 days ago
I had a lot of with Code Crafters. It's a paid platform, but they give you a basic walk through of different technologies, with full test suites. For example, you implement some basic Redis. It doesn't spoon feed you what to do, but... - Source: Hacker News / 10 months ago
Tracking Space Repeat since Mar 2026.
When comparing CodeCrafters and Space Repeat, you can also consider the following products.

Interactive coding screencasts created in an instant
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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.
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Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
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Empowering emerging markets with high-quality tech education
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Spaced repetition that emails you when it’s time to review.
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