Auto shape detection. This is especially very important for lines. Notability in iOS has this. If you draw a line and hold it for a second it will become a straight line that you can adjust. Simple convert to shapes will do for rest of the shapes. Best note taking app on the market, my GPA (civil engineer) went up 0.5 just thanks to you guys. Well done !

Add handwriting recognition capabilities to convert handwriting to typeset text.

Some basic shapes such as lines, arrows, curves, rectangles, circles, hexagons, and triangles would be appreciated.

Please add ability to rotate selected items to various degrees (not just 90).

Adding a search button would make things more accessible

Just add to existing shapes more selections.

Add ability to search for notes based on note and notebook title.

Having multiple tabs at the top of the screen to open multiple documents at the same time making it easier to access many documents at once without having to open one and close it to open another one

I would like to vote for resuming support for Windows devices. Squid is a great app for recording tutorial videos with a pen (just enough features, responsive, and easy to use). I realize that you have limited resources, but I wanted to put the vote out there.

A home screen widget that would let you view a note and quickly open it to edit it.

Full screen mode to maximize writing space. Have a little "-" sign that minimizes the toolbar into a tiny chevron symbol. You can restore the toolbar by double tapping the chevron symbol.

Allow copying/duplicating notes within and between notebooks.

Selection/Lasso tool should select only what has been selected rather than a rectangular area.

Add ability to search based on text within imported PDFs.

Give an option to insert internal and external hyperlinks.

It would be nice if the app opened to a home screen that showed your folders/notebooks, rather than your individual recently opened notes. This would feel a little bit more organized and easy to access for people like me, who use multiple documents under one "Notebook" for classes and the like.

Add ability to group selected items.

Add the option to move or copy a page to a different note.

It would be very useful if the users could add page number in its notebooks pages. When printed, it becomes easier to go thru the pages when they are numbered.