While chatting on Zalo, if you need to send messages from one contact to another or want to delete messages from your chat window, it's straightforward. Check out the following article for step-by-step instructions.
Zalo - How to duplicate, copy messages
Depending on the device you are using,
Download Zalo on Windows: Zalo
Download Zalo for Android users: Zalo for Android
Download Zalo for iPhone users: Zalo for iPhone
Download Zalo for Windows Phone users: Zalo for Windows Phone
In addition to Zalo, Viber is also among the favored applications used by users. Viber's main feature is free calling, and now users can also chat and send unlimited messages for free. If you don't have a Viber account yet, you can create a Viber account to make calls and send messages to friends freely.