Is duolingo really free?

Related questions

1. How many languages can you learn on Duolingo?
2. What does BBC English mean?
3. What is subject in email?
4. What does the C stand for in CNN?
5. Is duolingo completely free?
6. Is English easy to learn?
7. How do you read English?
8. What does BBC mean texting?
9. Is duolingo safe?
10. Can you watch BBC America in the UK?

Tags

1. #offline
2. #millions
3. #duolingo
4. #language
5. #supported
6. #remain
7. #access
8. #lessons
9. #users
10. #month
11. #available
12. #subscribers
13. #around
14. #version
15. #wrote
16. #education
17. #people
18. #world
19. #offers