Question: I'm looking for a cloud-based collaboration platform that allows real-time commenting and shape-specific feedback on diagrams.

If you need a cloud-based collaboration service that lets you comment in real time and leave feedback on specific shapes in a diagram, Lucidchart is a good option. It's got smart diagramming abilities, real-time collaboration and in-editor chat and comment abilities specific to shapes. Lucidchart can integrate with Google Workspace, Microsoft, Atlassian and Slack, so it's good for teams of modest size or larger, from IT and engineering to education and training.

Another strong contender is Slatebox, which uses AI to generate editable diagrams from text prompts. It's got real-time collaboration abilities on multi-cursor canvases, real-time note taking and AI-generated mind maps. Slatebox is geared for mind-mapping, brainstorming and design, but it's flexible enough for teams of any size. It can be integrated with Google Image Search, and you can use custom templates and a big library of shapes.

If you want a more elaborate visual collaboration service, BoardMix combines whiteboards, mind maps, flowcharts and other tools. It's got real-time collaboration abilities for up to 500 people, commenting and voting, and AI-generated content. BoardMix is good for business planning, daily meetings and marketing analysis, and it's available in a variety of pricing tiers for different team sizes.

Mural is another good option, with secure, flexible visual work tools that can be integrated with Microsoft 365. It's got tools for brainstorming, idea prioritization, project planning and customer understanding. Mural has real-time collaboration abilities with interactive tools and AI integration, and it's a good option for teams that want to get people together and be creative while keeping security and compliance in mind.