Viber is a messenger created for making internet calls from smartphones as well as personal computers or laptops. It is available for all popular platforms, making it widely accessible with a considerable user base.

For smartphones running on BlackBerry OS, Android, iOS, Windows Phone, Symbian, Bada. For computers with OS - Linux, Windows, OS X. It integrates with the address book and authorizes through the phone number. Viber provides high-quality free communication (with only internet traffic payment) between smartphones with Viber installed, enabling the exchange of SMS, pictures, audio, and video messages. The program has a simple and user-friendly interface, consuming little data during calls.

Additionally, users can exchange files and text messages. A notable feature of Viber is that users log in with their phone numbers, eliminating the need to add or transfer all contacts again.

Viber automatically finds users when their numbers are saved in the phone contacts and match the Viber identifier. Furthermore, the developers continuously add new features and fix errors in the program, which is a definite advantage of this free messenger.

Compared to competitors like Skype, Viber stands out for its simplicity and user-friendly interface, as other platforms can be somewhat heavy and complex to manage.

Furthermore, there is no need to come up with a login, as the phone number serves as the identifier. An original option is provided: users can send greetings to recently added contacts and download sticker packs for free. Another advantage is that Viber is not resource-intensive; the only requirement is an internet connection.

Getting used to the application is quick, and specialized knowledge or skills are not necessary. Using Viber is as easy as using a regular messaging service. Additionally, the messenger offers several useful features that might not be available in other platforms:

Mobile walkie-talkie: Tired of typing messages? Users can activate the "press and talk" mode and dictate the message, which can then be sent to the recipient. Drawing utility: Users can choose a photo, enlarge it, select "add doodle" from the context menu, and start drawing. Available tools include text, stickers, and brushes, and the drawing area can be selected freely. Screen deactivation: Sometimes, an abundance of notifications about missed calls and emails can be distracting and annoying. Viber has a setting that allows users to turn off the display backlight when receiving messages. Additionally, the menu can be fully customized by activating necessary options and disabling unnecessary ones.

Functionality of the free Viber program:

  • Supports free video and voice calls.
  • High-quality audio and video.
  • Very convenient and user-friendly intuitive interface.
  • Registration system with a login - your phone number.
  • Automatic search for users from the main contacts list.
  • Viber is available for all major platforms.
  • Low system requirements.
  • Fast and efficient launch and operation.
  • Low data consumption.
  • File and message exchange.
  • Ad-free.
  • Group chat mode available.
  • Perfect synchronization between smartphone and PC.
  • Works on Wi-Fi and 3G/4G networks.
  • Seamless transfer of ongoing calls.
  • Free to download, no registration required, and available in Russian language.

However, like any product, it has its drawbacks:

  • Unstable voice communication, which is more of an issue with providers and mobile operators rather than the program developers.
  • Calls and messages are only available to contacts saved in the address book; others cannot be reached through Viber.
  • Lack of indication for the online and offline status of the contacts.
  • Some believe that the messaging is not protected by special encryption methods and could potentially be accessed by malicious entities.

Despite these drawbacks, the messenger remains one of the most downloaded, with the number of downloads reaching 500 million and continuing to grow.

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