WeChat is a free
Supports voice notes, video calling and more
WeChat is cross platform and includes individual and group messaging with text, voice notes, images, videos and location data. WeChat allows free HD video calls, secure message storage and does not invade your chats with intrusive advertising. WeChat also supports video recordings and syncing of phone contacts.
WeChat saves your chat history so that you can search it any time. However, if you want to withdraw a message that you've sent, you've also got up-to two minutes after sending it to remove it from the chat history. However, unless you do this immediately, the chances are that the recipient will have already read it.
Other than that, WeChat is just another WhatsApp alternative that doesn't offer anything new, although it has been updated to offer WeChat games. As the developer is based in China, it's also considerably more popular in Asia than the rest of the World.
WhatsApp style interface
The interface of WeChat will be familiar to anyone who has ever used WhatsApp. Chats, Contacts, Social and Settings are listed along the bottom and new notifications appear in your WeChat timeline. WeChat is designed with group chatting in mind and includes a Group Live Chat feature for groups for which you can invite up to 100 people into using QR codes.
An interesting WhatsApp alternative with video
WeChat is a heavily inspired WhatsApp style chat client that can be a bit overwhelming with notifications but if you need to video chat, is an interesting alternative to WhatsApp.