Online messengers

https://www.whatsapp.com

Free messaging via the Internet.

In addition to basic messaging WhatsApp users can create groups, send each other unlimited messages, photos, audio and video files up to 2 Gb.
Photos and videos will be stored on your phone, so do not abuse.

Web version

Messenger Yandex.

• text chat,
• video calls to mobiles and computers,
• conferences,
• send voice messages - they will turn into text themselves,
• channels, create and subscribe.

https://telegram.org
additional url: telegram.me, t.me

Messenger to smartphone from Durov.
Lightweight, stylish, professionally made, as well as VKontakte, fast, secure and free.
Synchronization on all devices, unlimited messages, photos, videos and files of any type (.doc, .zip, .pdf, etc.) ...

Security and stability

In Belarus, during the uprising, many sites and services were blocked, Telegram was the only one working as stably as the Internet allowed.

Functions

1. chat,
2. video calls,
3. videochat,
4. the possibility of joint viewing of the video stream,
5. groups of up to 5000 people,
6. channels for sending messages to an unlimited number of subscribers.

Free calls from your smartphone and in your browser.

Create a video call and send the participants an invitation link.

• Create call.
• Schedule.
• Free.
• Participation without registration.
• Sign in via link.
• Up to 100 participants.
• Without installing the app.
• No time constraints.
• Screen Show.
• Integrate with Mail and Calendar.

Create a Call Link

Send the link to your conversation partners

Wait for contacts

Pushed call

Call from Mail

Call from Calendar

Any Mail.ru user can create a video call.
Invited participants do not need to register and install additional applications.

Displays notifications containing the sender's name, the subject of the message, and the time it was received.

The main advantage is free SMS and integration into the mail.
That is, if you use mail from Mail.ru through the browser, then you do not need to install the Agent, it is already there.
The ability to create a compact address book With phone numbers to easily send regular SMS.
Displays notifications containing the name of the sender, the subject of the message and the time it was received.

Features

• instant messages;
• check spelling "on the fly";
• Free SMS to mobile;
• voice communication;
• high quality video calls;
• calls to phones around the world (paid);
• multi-user conferences;
• View photos and videos in the chat window;
• Alarm clock;
• You can chat with friends from all social networks and instant messengers (ICQ, Classmates, VK, Facebook, Jabber);
• Notifications from mail and social networks;
• music player;
• microblogging.

https://icq.com

Of course it is necessary to consider this once the most popular program.
in order to send a message to someone's ICQ address, you have to be and myself on ICQ. And most of our users choose the ICQ service.

in addition to text messaging, ICQ offers:

• Free SMS from ICQ to mobile phone
• Free calls from computer to computer (like Skype).

https://web.skype.com

Skype in browser without installing additional software. If you use Skype on your computer, you quickly navigate to the online version.

Advantages

1. does not require installation, does not take system resources, when we do not use it,
2. if you already have an account, you will already have an address book here, in principle, it's like logging into the program,
3. it's convenient to use it from someone else's computer, even if the program is not installed on it.

Disadvantages

We install the software and forgot, it starts with the system, we just use it. And then you need to open the browser and go not a site, otherwise nobody will reach us and lose the meaning of Skype.

https://chat.google.com

Chat for team communication.

Integration with G Suite and third-party tools.
Meet Bot meetings browse calendars and schedule appointments at a time that's convenient for everyone.