Scribble Together vs Ziteboard

Scribble Together is an online whiteboard for handwriting equations, drawing diagrams and annotating PDFs. Users can import PDF files, add marks and export the annotated documents. Boards provide an infinite canvas, and users can create unlimited whiteboards. Owners can allow guests to scribble and navigate on a shared board; guests join by link or temporary four-digit code without registration or passwords. Background choices include graph, lined, dot-grid and music staff paper. A Zoom app gives meeting participants access to whiteboards created in the meeting. The help guide describes PDF import and export through Google Drive using the iOS file picker and PDF export feature. Its Free plan provides an offline personal notebook for iOS, unlimited whiteboards and guest joining. The Member plan costs $4.16 a month and includes web board creation, access across devices and unlimited guests. First-time web sign-ins receive a three-day trial; memberships include 14 or 30 free days depending on monthly or annual membership. The project began in 2017.

Ziteboard is a web-based whiteboard for real-time collaboration and permanent, shareable board management. Its infinite, zoomable canvas uses vector graphics and recognises circles, rectangles and straight lines. Users can import PDF pages and images, then export boards as PNG, SVG or PDF. The maker lists tutoring, distance learning, classrooms, team design, workflow and prototype work, data visualisation, presentations and meeting notes as uses. Google Drive and Dropbox resources can be inserted, and a WordPress plugin embeds boards. The Starter plan costs nothing, billed forever, with three owned boards, unlimited shared boards and collaborators, limited traffic, three basic colours, low-resolution image import and first-page PDF import. One Week Pro costs $5, paid once; Monthly Pro costs $9 a month; Annual Pro costs $85 a year. Platforms include Android, extension, iOS, macOS, web and Windows.