Communication Software for macOS
Signal
Signal is a cross-platform encrypted messaging application that has a strong focus on privacy. The application is developed by Signal Messenger LLC and provides users with features like one-to-one and group messages, which can include files, voice notes, images and videos. The software is famous for being used by the whistleblower and privacy advocate Edward Snowden who once said "I use Signal every day, it is the most scalable encryption tool we have".
ManyCam
ManyCam is a software that allow you to use multiple different video chat and video streaming applications simultaneously. With ManyCam, it is easy to record and broadcast live videos on popular third-party platforms YouTube, Facebook and others. To enhance these communications you can add virtual backgrounds, create layers and presets, screencast desktop, and more.
WhatsApp
WhatsApp is free messenger app for chat and voice over IP, owned and managed by Facebook. The application allow users to send text and voice messages, make voice and video calls and share images, media files and user locations with friends and family.
HipChat
A web-based service for internal instant messaging and private chat for organizations. HipChat provides one-on-one and group and topic-based chat, as well as cloud-based file storage, video calling, searchable message-history and inline-image viewing. You can use HipChat natively on your desktop or mobile phone, or web browser. HipChat is available for Android, iOS, macOS, Linux, Windows and the Web.
Irssi
Irssi is a terminal based IRC client for UNIX-based operating systems. Irssi comes with IRC built-in and is multi-protocol friendly for module authors, it also support integration with SILC and ICB protocols via plugins. The application easily integrates with your window manager, your terminal emulator, your remote connection, your terminal multiplexer, your IRC bouncer and your IRC adapter. Allowing you to use Irssi virtually everywher throughout your system. Irssi is free software licensed under the GPLv2, available for macOS, Linux, BSD, Solaris, and Cygwin.
Thunderbird
A free an open-source email client developed openly by the Mozilla Foundation and the community. Thunderbird is easy to setup and customize and supports POP and IMAP. The email client comes with all features needed to search, filter, write and manage emails, but also have builtin support for live chat between contact and RSS/Atom feed reader.
Mac Cell Phone Bulk SMS
Mac messaging software is useful for business apps for broadcasting a large number of text notifications to global friends, relatives and customers at minimum price. Mac Cell Phone Bulk SMS program allows users to skip duplicate number entries while sending bulk text messages from GSM technology based mobile phone. Mac sms sender utility supports Unicode language for delivering group text notifications for communication purpose.