Telegram Messenger is a highly encrypted messaging platform that allow the uses to send the messages and make communications across the globe in a highly private and secret environment. Unlike most of the instant messenger, Telegram Messenger never locates the identity of its users and not keep eye on the behavior of its users. Other features for communication in Telegram Messenger are almost same just like other messaging application. However, the feature of calls or video calls via Telegram Messenger are still not possible. But the users of Telegram Messenger can still enjoy the sending of messages and large files and media with other Telegram Messenger users for free. Telegram Messenger offers the system of group creation as well where the same like-minded people can create the public or private group to share the informational and amazing stuff with their family members and friends. At a same time, two hundred people can become the part of these group. By using Telegram Messenger, the users can use the features and functions of connecting with other Telegram Messenger users, coordination in the shape of forming groups, synchronization with all devices, sending of documents of any type, sending encrypted messages, self-destruct messaging system, and a lot of others.
1. WhatsApp

2. LINE

3. Skype

4. Cotap

5. Digsby

6. Nimbuzz

7. Facebook Messenger

8. HipChat

9. AIM

10. WeChat

11. GroupMe

12. KakaoTalk Messenger

13. ICQ

14. Jitsi

15. Miranda IM

16. ooVoo

17. X-Lite

18. CometChat

19. iMessage

20. Google Allo

21. Kik

22. Yahoo Messenger

23. Twilio

24. Game Pigeon

25. WhatsApp Web

26. Messenger Lite

27. WhatsApp Desktop

28. Telegram X

29. Frim

Make that an even 20 by adding the best of them all, i.e., Threema.