Freeform vs Concepts
Freeform is an alternative to FigJam for Apple devices. It's a collaborative whiteboard app that allows you to draw, write, and brainstorm with your team.
Concepts is a vector-based sketching app for tablet devices. It's a great tool for creating wireframes, mockups, and other design assets.
Fan of beautiful writing apps? 🤔
Maybe Paper is what you're looking for.