Slack - A messaging app for teams who see through the Earth!
Notesnook - Notesnook is a simple and private note taking app that keeps your notes organized and synced on your phone, tablet and computer.
Confluence - Confluence is content collaboration software that changes how modern teams work
UpNote - A beautiful and clean cross-platform app for notes organizer
Flock - A faster way for your team to communicate
Note Board - Productivity app. Save information like a sticky notes.