Unlimited Whiteboard is a minimalist software for Apple Pencil with features like an infinite canvas, three paper backgrounds, PDF export, and dark mode support.
+1
Infinite Board Alternatives
Infinite Board is described as 'App for drawing and planning, providing unlimited workspace that extends beyond your device screen size by scrolling and dragging an indicator' and is a Whiteboard in the office & productivity category. There are more than 10 alternatives to Infinite Board for a variety of platforms, including iPad, Web-based, iPhone, Mac and Windows apps. The best Infinite Board alternative is AFFiNE, which is both free and Open Source. Other great apps like Infinite Board are tldraw, Freeform, FigJam and Microsoft Whiteboard.