Jitsi Meet – Android Apps on Google Play

Jitsi Meet lets you stay in touch with all your teams, be they family, friends, or colleagues. Instant video conferences, efficiently adapting to your scale.

* Unlimited users: There are no artificial restrictions on the number of users or conference participants. Server power and bandwidth are the only limiting factors. * No account needed. * Lock-protected rooms: Control the access to your conferences with a password. * Encrypted by default. * High quality: Audio and video are delivered with the clarity and richness of Opus and VP8. * Web browser ready: No downloads are required of your friends to join the conversation. Jitsi Meet works directly within their browsers as well. Simply share your conference URL with others to get started. * 100% open source: Powered by awesome communities from all over the world. And your friends at Atlassian. * Invite by pretty URLs: You can meet at the easy to remember https://MySite.com/OurConf of your choice instead of joining the hard to remember rooms with seemingly random sequences of numbers and letters in their names.

Link:
Jitsi Meet - Android Apps on Google Play