
Memrise
Busuu
Babbel
Anki
Lingvist
Rosetta Stone
Mondly
Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Codacy
CodeClimate
SonarQube
codebeat
CodeRabbit
CodeAnt AI
CodeMeter
Automated code reviews with static analysis.
Which is more popular?
Based on our record, Duolingo should be more popular than DeepSource. It has been mentioned 70 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | duolingo.com | deepsource.com |
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| Company | Startup from the United States · 500 - 999 employees · 2011 | 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Duolingo yet.
DeepSource helps you automatically find and fix issues in your code during code reviews, such as bug risks, anti-patterns, performance issues, and security flaws. It takes less than 5 minutes to set up with your Bitbucket, GitHub, or GitLab account. It works for Python, Go, Ruby, Java, and...
What each product offers, as listed by its team.


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Overall verdict
Why this product is good
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Walkthroughs and reviews on video.
Duolingo Review: Does it really work?
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How DeepSource works
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Duolingo and DeepSource. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


For AI conversation practice, Duolingo Max is the tier to choose, and we'd call it a useful upgrade only if those extra features matter to you. It sits above the paid Super Duolingo tier rather than directly above the...
Our team of dedicated writers and language enthusiasts is committed to bringing you insightful content and expert advice to enhance your Duolingo experience. From language-learning tips to in-depth analyses of...
Language learning apps such as Duolingo, Babbel and others have millions of registered users worldwide. Duolingo alone has over 300 million registered users.
DeepSource, a comprehensive code review tool, offers detailed insights into code quality, security vulnerabilities, and productivity metrics. It empowers developers to identify and address potential issues early in...
DeepSource’s focus on reducing false positives and providing actionable insights could make it an attractive option for teams looking to improve their code review process and overall code health. But while DeepSource...
Recommendations tracked on public social media and blogs since March 2021.


Duolingo: a language-learning app that uses points, levels, and rewards to keep you motivated. This is the most effective when you do it with your friends or a group of people who share your learning goals. I got really addicted to... Source: over 3 years ago
Hi! I wish I'd seen a post like this a few months ago. I would have been interested then. By now it's a little late for me. I just signed up for the 2 week free trial since that's about all the time I have left before I leave. If you... Source: over 3 years ago
If you want a guided course try Memrise or Duolingo. Source: over 3 years ago
Navigate to deepsource.com in your browser. - Source: dev.to / 8 months ago
On the OpenSSF CVE Benchmark[1], Semgrep CE hits 56.97% accuracy vs our 81.21%, and nearly 3x higher recall (75.61% vs 26.83%). On when to run it, fair point. Autofix Bot is currently meant for local use (TUI, Claude Code plugin, MCP).... - Source: Hacker News / 11 months ago
Recently, there was a Java meetup held at work (Deepsource) where I gave my first ever talk, "How GraalVM improves Ruby". - Source: dev.to / almost 4 years ago
When comparing Duolingo and DeepSource, you can also consider the following products.

Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
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Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
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Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .
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Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.
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Babbel is a paid language learning service that aims to strike a balance between thoroughness and cost efficiency.
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SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
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