"Zalo" is "free", and it is very common in everyday life. Zalo, unlike Facebook or WhatsApp, is free for its users. It is important for you to note that Zalo cannot be used to chat with anyone without an account. Therefore, you will need to have an internet connection in your area to access the app. You may be confused if you are looking for free video-calling apps. Zalo's "i" option is the best for beginners. You will get the option to select as many as you