Secure Chat is described as 'Slack-alternative hosted in Switzerland. It provides a platform for teams to communicate and collaborate and share files. It has several features more than Slack, including end-to-end encrypted messaging, message threads, guaranteed deletion, and integration' and is a Group Chat app in the security & privacy category. There are more than 10 alternatives to Secure Chat for a variety of platforms, including Android, iPhone, Windows, Mac and Web-based apps. The best Secure Chat alternative is Telegram, which is free. Other great apps like Secure Chat are Element, Tox, WhatsApp and Slack.