Place on the table 4 Google Duo, FaceTime, Skype and Messenger video call apps

Google Duo is Google's latest video call application. Like other video call apps like FaceTime, Skype and Messenger, Google Duo also allows users to easily connect and chat with each other via video.

1. Google Duo

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- Available on device: Google Duo application is available for both Android devices and iOS devices.

1. Download Google Duo for Android devices here.
2. Download Google Duo for iOS devices here.

- How to use: You only need to enter the phone number and allow the application to access your contacts. The Google Duo application will not connect to any Google community service. And a request is on the phone of the user you want to call on Google Duo to install the application first.

- Highlights: If you move in the process of using the application, Google Duo will automatically switch between Wifi and use mobile data without having to "interrupt" the call.

In addition, the Knock Knock feature also allows you to see the caller before you answer the call.

2. FaceTime

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- Available on device: FaceTime is a free application for Apple devices, including: iPhones, iPads, iPod Touches and Mac.

1. Download FaceTime to your Mac computer and install it here.

- How to use: To use FaceTime requires an Apple IP and an email address. The application works on the same contacts, not as a separate application. When you receive any call, you can answer the call from one of Apple products.

- Highlights: You can easily convert voice calls and video calls, and adjust portrait (potrait) to landscape (landscape) or front camera to rear camera.

3. Skype

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- Available on device: Skype is the application available for most mobile phones, including: Android, iPhone, Windows Phone, BlackBerry, Amazon Fire Phone, and iPod Touch. In addition the app is also available on several tablets, Android Wear, Apple Watch, and Xbox One.

1. Download Skype for Android devices here.
2. Download Skype for iOS devices here.
3. Download Skype for Windows computers here.

- How to use : You can link Skype account with Outlook and GroupMe. Skype-to-Skype calls, Group calls, and instant messaging on Skype are free. In addition, you can pay to access other features including making calls to mobile phones and desktop phones.

- Highlights: You can add up to 25 people to a group call. The difference between Skype and Google Duo and FaceTime is that users can chat online during video calls.

In addition Skype also provides users with features that can share screens, call forwarding, voice messages and translation tools.

4. Facebook Messenger

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- Available on device: Video call is available on Messenger for any user with a Facebook account. The application works in 3 browsers: Google Chrome, Firefox and Opera.

1. Download Messenger for Android devices here.
2. Download Messenger for web browser here.
3. Download Messenger for iOS devices here.

- Usage: Video calling works on both web browsers and on Facebook Messenger for mobile devices.

- Highlights: Unlike FaceTime and Google Duo, Facebook recently announced that users can make group calls on Facebook Messenger with 50 people.

Refer to some of the following articles:

1. Instructions for free group calling on Facebook Messenger

1. How to build a bot that automatically chat on Facebook Messenger

1. How to log out of Facebook Messenger on iOS, Android and Windows Phone

Wish you have moments of fun!