Exercism
Worth it
Confidence: Medium
Buy if you already code and want free practice and mentorship across 83 languages.
Comparison
Exercism vs Codecademy
Exercism lands on Worth it, and Codecademy lands on Depends.
Codecademy
Depends
Confidence: Medium
Start free if you're an absolute beginner wanting structured, interactive lessons . multiple sources say it works well for that.
| Compare | Exercism | Codecademy |
|---|---|---|
| Verdict | Worth it | Depends |
| Best for | Devs practicing a new language | Absolute beginners learning to code |
| Who it's not for | Total beginners needing guided from-zero lessons | Experienced devs . Reddit critics find exercises too basic |
| Privacy | No product breach found; minor CVEs affect the CLI tool, and no dedicated security page surfaced.⁸ | No major public breaches found in reviewed sources; Open Bug Bounty lists reported vulnerabilities marked patched.16 |
| Support quality | Volunteer mentors; shortages reported in some languages | Trustpilot cites customer service and billing complaints. |
| Public sentiment | Users love it as a free practice tool but repeatedly say it's for practicing, not learning to code from scratch.³ | Beginners often praise the structured interactive lessons, while detractors call Pro overpriced, shallow, and backed by weak support.11 |
| Biggest gotcha | 2024 restructure over finances . free product's long-term runway is uncertain.² | Trustpilot users complain about subscription billing and customer service responsiveness11 |
Pick Exercism when
- Devs practicing a new language
- Self-taught coders wanting free mentor feedback
- Career switchers sharpening existing skills
- Fans of local-first, open-source tools
When Exercism is not a fit
- Total beginners needing guided from-zero lessons
- Companies wanting team training features . no Teams product yet
- Interview-prep grinders (LeetCode fits better)
- Buyers needing SLAs, support guarantees, or SSO
Pick Codecademy when
- Absolute beginners learning to code
- Self-paced career-path learners
- Students (discounted Pro plan)
- Teams upskilling non-engineers
When Codecademy is not a fit
- Experienced devs . Reddit critics find exercises too basic
- Anyone needing mentorship or job guarantees . it's self-paced
- Buyers allergic to auto-renewing subscriptions
- Young kids . purpose-built platforms exist
Sources
- Exercism homepage . 100% free, 83 languagesexercism.orgofficial
official
review
- Exercism is great and free . Redditreddit.comreview
- 2M users but no money in the bank . Hacker Newsnews.ycombinator.comnews
- Exercism desperately needs Rust mentorsusers.rust-lang.orgreview
- Exercism Teams... Coming soon?forum.exercism.orgreview
- CVE-2025-61723 exercism: Quadratic complexitybugzilla.redhat.comsecurity
- Pricing | Codecademycodecademy.comofficial
- Price of Codecademy - Help Centerhelp.codecademy.comofficial
- Codecademy Reviews | Trustpilottrustpilot.comreview
- Codecademy Reviews | G2g2.comreview
- Codecademy Reviews - 2.3/5 | SmartCustomersmartcustomer.comreview
- Is Codecademy Pro worth it? | Redditreddit.comreview
- codecademy.com vulnerabilities | Open Bug Bountyopenbugbounty.orgsecurity