How to download and install Messenger for my Android phone? I heard it's free and I want to try it.

You can follow this tutorial to download and install Messenger for your Android phone:

1. Go to Play Store on your Android.

2. Search for "Messenger". You see "Messenger" showing up in the search result list.

3. Tap on the "Messenger" icon: . You see detailed information about Messenger for Android.

4. Tap on "READ MORE". You see more details.

5. Swipe up and down to review the detailed information to make sure that it's the legitimate app:

Messenger

...
Version: 148.0.0.20.381
Updated: Jan 8, 2018
Downloads: 1,000,000,000+
Offered by: Facebook
Developer e-mail: android-support@fb.com

6. Tap "X" to close the details screen.

7. Tap the "INSTALL". You see the download progress status.

8. Wait for the download and installation to finish.

9. Go to the Home Screen. You see "Facebook" listed as an app and ready to use.

The picture below shows you how to download and install "Facebook" from Play Store on Android devices:

⇒ Sign In to Messenger on Android

⇐ What Is Messenger for Android

⇑ Messenger for Android

⇑⇑ Facebook - Frequently Asked Questions