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Opal.so VS CodeCrafters

Compare Opal.so VS CodeCrafters and see what are their differences

Opal.so

Real Focus in Real-Time. Measure and improve your focus day by day, on iPhone, iPad and macOS.

No screenshot yet
Rating
0 reviews
Alternatives Is it good?
CodeCrafters

Programming exercises for experienced engineers.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
Tempreon
A personal memory layer for your AI tools, connected over MCP. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, CodeCrafters seems to be more popular. It has been mentioned 11 times since March 2021.

social mentions
0 vs 11
Productivity popularity
100% vs 0%
alternatives listed
120 vs 84

Base details

Website, pricing, platforms and company facts side by side.

Opal.so
CodeCrafters
Website opal.so codecrafters.io
Pricing
Official pricing
Open source Official pricing
Listed in
Focus Productivity Time Tracking Time Management +1
Crypto Cryptocurrencies Tech Education +1

Videos

Walkthroughs and reviews on video.

Opal.so 0 videos + Add
CodeCrafters 2 videos + Add

No Opal.so videos yet. You could help us improve this page by suggesting one.

Learn to Build Real Software With CodeCrafters

More videos

  • - Mechanical Sympathy and Learning with CodeCrafters

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Opal.so
CodeCrafters
100% 100%
Productivity
0% 0%
0% 0%
Education
100% 100%
100% 100%
Focus
0% 0%
0% 0%
Online Learning
100% 100%

User comments

Share your experience with using Opal.so and CodeCrafters. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Opal.so 0 mentions
CodeCrafters 11 mentions

Tracking Opal.so since May 2025.

  • I tried building a shell in Rust
    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
  • We Planted 180 Bugs in Copies of Real Open-Source Backends. Fix Your First One in About 20 Minutes
    Submitting with git push also exists at CodeCrafters, for code you write from scratch. - Source: dev.to / 23 days ago
  • Ask HN: What skills do you want to develop or improve in 2026?
    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

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Alternatives to Opal.so and CodeCrafters

When comparing Opal.so and CodeCrafters, you can also consider the following products.

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