The thread centers on finding a cross-platform app that lets an iPad + Windows group collaborate with both typed and handwritten notes in real time. Early replies recommend Microsoft OneNote as the most reliable “infinite canvas” notebook for simultaneous Windows/iPad editing, while also suggesting iPad-first options like Notability (and web-based whiteboards like Miro/Whiteboard) depending on handwriting quality and collaboration style; later, a key question is raised about using Notability on Windows, with the response clarifying it isn’t available for Windows natively and suggesting PDF/export-based workarounds or switching to alternatives like OneNote. Overall sentiment is practical and helpful, with contributors encouraging an A/B test approach and cautioning against unofficial third-party “Notability for PC” sites.