Webex is a platform for video conferencing, online meetings, collaboration, and messaging.

It is used in both business and education to conduct:

• Video calls and meetings
• Webinars and online courses
• Collaboration on documents and presentations
• Real-time messaging and file sharing

The platform competes with solutions such as Zoom, Microsoft Teams and Google Meet.

Viber lets you send free messages and make free calls to other Viber users on any device, network, in any country!

Viber syncs with your mobile contact list and automatically detects which of your contacts are on Viber.

• messages: text, photos and stickers
• group chats
• HD voice calls
• video calls
• full synchronization between mobile and PC clients
• moving incoming calls between devices

The service has almost 100 thousand games.

The games are distributed on a pay-what-you-want model - the user can pay any amount above the minimum if they like the game they buy.
You can use Bitcoin cryptocurrency when making purchases on the site.

This app is recommended as "the best way to play your games on itch.io."

ScummVM - allows you to run some classic adventures, quests, and role-playing games (RPGs) if you have the data files from these games. The point is that ScummVM replaces the game executable files, thereby allowing you to play on systems that did not even exist at the time of their creation! ScummVM contains completely rewritten engines of these games and is not an emulator.

ScummVM supports more than 250 quests and adventures. Many classic quests published by such legendary studios as LucasArts, Sierra On-Line, Revolution Software, Cyan, Inc. and Westwood Studios are supported.

CrossOver allows you to run Windows applications on Linux.

It differs from Wine in its narrower focus: first of all, it is aimed at supporting the most popular applications and games for Windows. For example, applications such as Microsoft Office of different versions, Microsoft Internet Explorer, Lotus Notes, Adobe Photoshop, Apple iTunes, Quicken and games Skyrim, World Of Warcraft and many others.

Unlike Wine add-ons such as PlayOnLinux, all applications and games in CrossOver are thoroughly tested for compatibility and debugged, so their operation is usually more stable than in Wine.

Telegram is a messenger that allows you to exchange text and voice messages and media files of many formats. It uses a proprietary server part with closed code, running on the capacities of several companies.

In addition to the standard exchange of messages in dialogs and groups, the messenger can store an unlimited number of files, maintain channels (microblogs), create and use bots.

Microsoft Teams — an enterprise platform that integrates chat, meetings, notes, and attachments into a workspace. Developed by Microsoft as a competitor to the popular corporate solution Slack.

This is a high-quality viewer/cataloger/converter of graphic files, supporting a large number of formats and has many additional functions.

ZenMap (NMap) is a deep network or host scanner for determining the state of scanned objects (ports and corresponding services).
The following methods are used for scanning: UDP, TCP (connect), TCP SYN (half-open), FTP-proxy (breakthrough via ftp), Reverse-ident, ICMP (ping), FIN, ACK, Xmas tree, SYN and NULL scanning, etc.
Additional features: OS detection, "invisible" scanning, dynamic delay calculation and packet retransmission, parallel scanning, detection of inactive hosts, scanning using false hosts, detection of the presence of packet filters, direct RPC scanning, scanning using IP fragmentation, etc.

The utility removes cache, internet history, temporary files, cookies and other unnecessary files and frees up disk space.

It can also ensure privacy is maintained by removing unwanted information and deep cleaning.

Processes and cleans temporary files of Adobe Reader, Bash, Beagle, Firefox, Flash, GIMP, Google Earth, Java, KDE, LibreOffice.org, Opera, RealPlayer, rpmbuild, Second Life Viewer, VIM, XChat, and many more.