I’ve been using Goodnotes across Android and Windows for a while, and I really appreciate how much the cross-platform experience has improved. I’d like to suggest a few features that I think would make the non-iOS versions feel even closer to the full Goodnotes experience:

1. Lower pen latency and more responsive strokes
   On Android tablets (especially Samsung and Lenovo), the pen feels noticeably slower than on iPad. Even a small improvement in real-time stroke rendering would make handwriting feel much more natural.

2. Full offline notebook support
   Right now, working offline can be inconsistent. It would be great if notebooks cached locally could be edited smoothly and synced automatically once the device comes back online.

3. Two-way syncing for external PDFs/attachments
   Editing or annotating a PDF in Goodnotes on Android/Windows doesn’t always reflect across other platforms unless manually exported. A more seamless sync would make multi-device workflows easier.

4. Custom brush textures & pressure curve settings
   These would help artists and heavy note-takers fine-tune the writing feel.

Thanks for the continued work on the cross-platform wheelie life version! I’m excited to see it keep improving.