Dialog Messenger - handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Ripcord - A desktop chat client for Discord and Slack
Pocket - When you find something you want to view later, put it in Pocket.
Done Hui - No need to switch between multiple pieces of software to get through the workday. CHATS: Communicate freely. CALENDAR: Know your team's availability, plan meetings. No more conflicts. TO-DOs: Stay on top of all projects. FILES: All files, one spot.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.