4
Free
Nextcloud Talk
Nextcloud Talk: Secure Communication Platform
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Free
Nextcloud Talk: Secure Communication Platform
Free
Steam Chat: Take Your Steam Friends and Conversations On-The-Go
Free
A free program for iPhone, by AXAET Technology Co., Ltd.
Free
Mattermost: Secure Collaboration Platform for Software Development
Free
A Messenger That Works For Changing Online Workplaces.
Free
Basic chat app that aims to be more than just a messaging service