Chat Bin is a free Android application that belongs to the Social & Communication category. This app is developed by xharma and it allows users to send messages without saving the number, save last seen for later, reply to messages, call, and recover deleted messages.

One of the most interesting features of Chat Bin is the ability to recover deleted messages. If someone deletes a message before you could see it, you can simply copy a message above or below the deleted one and check it. Moreover, you can always open Chat Bin to access all the deleted messages.

Another useful feature of Chat Bin is the ability to send messages without saving the number. This means that you don't need to save temporary contacts just for sending a text. Additionally, you can save your last seen for later and get notified by the app to read messages offline.

It's important to note that Chat Bin is not associated with WhatsApp Inc. and the app promises not to save or share your personal data. After installation, the app requires permission and access to function properly.

Overall, Chat Bin is a great app for those who want to recover deleted messages and send messages without saving the number. It's easy to use and has a simple interface.