Apps like Slack

Here are some great alternatives to Slack by SLACK TECHNOLOGIES L.L.C. :
Twist: Organized Messaging
Twist: Organized Messaging
★4.2
Quiet - Team Chat Over Tor
Quiet - Team Chat Over Tor
★4.8
Rock: Messaging + Tasks
Rock: Messaging + Tasks
★4.3
Knote team dashboard
Knote team dashboard
★4.5
Notejoy
Notejoy
★3.8
Flock - Team Chat & Collaborat
Flock - Team Chat & Collaborat
★4.4
Superlist - Tasks & Lists
Superlist - Tasks & Lists
★4.0
Asana: Work in one place
Asana: Work in one place
★4.4
Nucleus One - Teams Management
Nucleus One - Teams Management
★4.6
WorkDo - All-in-One Work App
WorkDo - All-in-One Work App
★4.1
Nifty: Project Management
Nifty: Project Management
★3.5
Redbooth - Project Management
Redbooth - Project Management
★4.1
Taskulu
Taskulu
★3.4
ProjectPlace
ProjectPlace
★3.7
monday.com - Work Management
monday.com - Work Management
★4.8
JANDI - Collaboration at Work
JANDI - Collaboration at Work
★4.5