Based on our record, ProjectHuddle seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Yep! I haven't used it yet but it's on my list to trial: https://projecthuddle.com/. Source: about 2 years ago
draw.io - Online diagramming application
Invision - Prototyping and collaboration for design teams
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.
Evrybo - Free design collaboration and prototyping tool
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.
Usersnap - Usersnap is a customer feedback software for SaaS companies that need to constantly improve and grow their products.