Huddle vs notion.so: What are the differences?

Developers describe Huddle as "The Enterprise Content Collaboration Platform". Huddle is conversations around content to move projects forward. It’s one copy of a file, saved in the cloud, for your team to work from. It’s being absolutely sure you’re working from the right version every time. It’s one secure, organized place for all your files, available anytime you need it, from whatever device you’re on. It’s the fastest, most secure environment you can customize—so it works the way you do. On the other hand, notion.so is detailed as "A unified workspace for docs, wikis, and tasks – designed for modern teams". A new tool that blends your everyday work apps into one. It's a unified and collaborative workspace for you and your team.

Huddle and notion.so can be primarily classified as "Project Management" tools.