CatchUp

CatchUp is a tool that you can use to have private conversations with one or more people. Simply identify the contacts available and start the call with total ease using your smartphone.

The CatchUp interface is really simple and includes two well-defined sections. In the upper area, you can check out the contacts that are ready to start a conversation. On the other hand, the lower part displays those who are not online but have the app installed.

When registering, you just need to enter your name, a phone number to verify the account, and a profile picture. Plus, you can set up your availability which shows you're online, only whenever you want.

Facebook makes it easy for you to connect with your friends, family, and co-workers yet again. As with Messenger, you just have to choose the contacts you want to talk to and start a conversation. Just keep in mind that with CatchUp, you can only place voice calls.