Duolingo
Udemy
| Feature | Duolingo | Udemy |
|---|---|---|
| Pricing | Free / from $9.99/mo | Free / from $12.99/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.3 / 5 |
| Best For | language-learners, students, travelers, beginners | self-paced-learners, budget-conscious-learners, professionals, hobbyists |
| Founded | 2011 | 2010 |
| Lessons | ✓ | ✗ |
| Stories | ✓ | ✗ |
| Podcasts | ✓ | ✗ |
| Ai Chat | ✓ | ✗ |
| Leaderboards | ✓ | ✗ |
| Streaks | ✓ | ✗ |
| Placement Tests | ✓ | ✗ |
| Video Courses | ✗ | ✓ |
| Lifetime Access | ✗ | ✓ |
| Mobile App | ✗ | ✓ |
| Certificates | ✗ | ✓ |
| Q And A | ✗ | ✓ |
| Coding Exercises | ✗ | ✓ |
| Bookmarks | ✗ | ✓ |
✓ Duolingo Pros
- Completely free core experience
- Gamification makes learning addictive
- AI conversation practice
- 40+ language courses
✗ Duolingo Cons
- Limited for advanced learners
- Ads on free tier
- Grammar explanations can be minimal
✓ Udemy Pros
- Massive course library covering nearly every topic
- Frequent sales with courses as low as $9.99
- Lifetime access to purchased courses
- 30-day money-back guarantee
- User reviews help identify quality courses
✗ Udemy Cons
- Quality varies significantly between instructors
- No accredited certificates or degrees
- Courses can become outdated without updates
The Verdict
Duolingo is built for language learners and students, with a focus on lessons and stories. Udemy targets self paced learners and budget conscious learners and leads with video-courses and lifetime-access.
Pricing is close: Duolingo starts at $9.99/mo versus $12.99/mo for Udemy — not a deciding factor on its own.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Bottom line: Duolingo has a slight overall edge — but if massive course library covering nearly every topic matters most to you, Udemy may still be the right call.