What are the options for free mobile calls?
With the popularity of the Internet and high-speed mobile connections, users of mobile devices can communicate with each other very quickly and simply through free calls.
Below are the best applications that users can choose to use.
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Facebook Messenger
With the popularity of the Facebook app, there is no reason why the accompanying messaging tool Facebook Messenger should not be widely used.
However, the downside of Facebook Messenger is its slow speed and battery drain. This is Facebook's independent messaging application, allowing users to text, make voice and video calls for free.
It even supports group calls with up to 50 people, records and sends audio messages, shares files, allows logging into multiple accounts on the app, shares location with friends, integrates many tools, add-ons for messages, and even has some simple entertainment games included.
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Hangouts
Hangouts is currently Google's most popular messaging tool, similar to Facebook Messenger, this tool also integrates many interesting features.
You can make voice and video calls, send messages, share photos and data with anyone who is also using Hangouts. All messages are synced to the cloud, allowing users to message friends at any time, even when they are not connected.
With Hangouts, people can sync their contacts and chats across any device as long as they have a Google account. Users can even download the Hangouts Dialer app to call most US and Canadian phone numbers for free.
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Skype
Skype is one of the most popular free applications on the internet. The outstanding feature of this tool is the ability to use multiple platforms including on phones, computers, tablets and most other devices running popular operating systems such as iOS, Android, Windows Phone, Windows, Mac.
Through Skype, users can send text messages, make free voice and video calls to other people using Skype, share files, send group messages... Skype also allows direct phone calls to a mobile phone number, however this feature requires a fee to use.
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Signal Private Messenger
Signal Private Messenger is an increasingly popular messaging service that, unlike similar apps like the one above, focuses on secure messaging. Signal Private Messenger is open source and encrypts everything you send, including voice calls, text messages, data, etc.
Of course, the recipient must also use this application to receive it. Signal Private Messenger is currently free and is the best choice for users who frequently text and call with security features as a top priority.
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Slack
Unlike the messaging and calling services above which are primarily intended for individual users, the messaging app Slack is focused on businesses large and small.
Through this application, users can create text channels, personal messages, share data, and even link with other storage applications such as Dropbox, Google Drive... to share data.
The biggest advantage of Slack is that it is cross-platform (desktop, Android, iOS) so users can chat with each other regardless of what device or mobile platform they use.
Slack's free plan allows users to store up to 10,000 messages that teams have exchanged with each other, 5GB of storage, and allows linking to 5 other services.
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Viber
Viber started out as a basic VoIP service, but quickly expanded into a popular messaging service with all the essential features like text messaging, voice calling, and of course the ability to make video calls.
The service is free for all Viber users, but users will have to pay if they want to call non-Viber users. Among the many features that Viber offers, the hidden messaging feature is very useful.
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Last but not least is WhatsApp, which is actually owned by Facebook.
In addition to the ability to text as well as make voice and video calls like the other apps on this list, WhatsApp also allows users to perform all of the above communication functions with other users regardless of the mobile platform they are using.
For example, iOS users can use video calling functionality to WhatsApp Android users or vice versa...
According to Giaoducthoidai
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