Android: If you're sharing a phone or tablet (or just have multiple Messenger accounts), using Messenger just got a lot easier. Now, on Android, you can add multiple accounts to Facebook Messenger.
The new feature allows you to add multiple Messenger accounts to your device and easily switch between them. You don't need to have a Facebook account to create a Messenger account. When you're logged into one account, you'll only see the unread message count for other accounts. No messages will be seen by anyone else. You can choose whether to require a password each time you change accounts.