Is WhatsApp or Viber better?

Related questions

1. What is the advantage of using Viber?
2. Does Viber require a phone number?
3. Which is safer Viber or WhatsApp?
4. Do you need WiFi for Viber calls?
5. Can Viber receive calls?
6. Is Viber secure?
7. Can Viber call landline?
8. Do you need Internet to use Viber?
9. Why has Viber stopped working?
10. Is Viber better than Skype?

Tags

1. #voice
2. #years
3. #bandwidth
4. #whatsapp
5. #voices
6. #experienced
7. #quality
8. #calls
9. #clear
10. #connections
11. #devices
12. #viber
13. #transfer
14. #video
15. #offer
16. #calling
17. #offered
18. #crisp
19. #ongoing
20. #between
21. #delivers