Why is WhatsApp free?

Related questions

1. Is it true that WhatsApp is sold to Facebook?
2. Is the elixir of life real?
3. Who bought WhatsApp messenger?
4. Why WhatsApp sold for 19 billion?
5. Did Mark Zuckerberg buy WhatsApp?
6. What is mix elixir?
7. How WhatsApp is created?
8. How does WhatsApp earn money without ads?
9. What is elixir app?
10. What do elixirs consist of?

Tags

1. #14billion
2. #messaging
3. #video
4. #those
5. #numbers
6. #mobile
7. #service
8. #images
9. #voice
10. #million
11. #calls
12. #cellular
13. #purchased
14. #facebook
15. #instant
16. #using
17. #whatsapp
18. #media
19. #standard
20. #19billion
21. #other
22. #messages