Connecteam - Connecteam offers multi-functional team collaboration mobile application for companies that manage on-the-go teams.
draw.io - Online diagramming application
Teleport Flock - Discover & budget group gatherings, anywhere in the world
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Hubstaff - Simple yet powerful employee work tracker with screenshots, timesheets, billing, in-depth reports, and more. Understand productivity issues and act on them.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.