A free program for Android, by Twinlife.

twinme is a secure, instant messaging and video call application that does not use your phone number, email address, or social network ID.

It allows you to send text, voice, and video messages to your friends and family members. You can also conduct high-quality voice and video calls with other people.

How to use the app:

1. Download the app and install it on your device.

2. You can see the other people who are online.

3. You can send a message to a friend, and the message will be delivered right away.

4. You can choose to call a friend or family member.