Annotate.net vs OpenBoard

Annotate.net gives instructors and students tools to interact with course materials, annotate work, and exchange feedback. Users can place 10 kinds of interactive questions in Google Slides, PDFs, web pages, and Annotate notebooks. Students can mark up Slides, PDFs, and notebooks; instructors can review work in real time and respond with audio or webcam video feedback. Assignments can combine web pages, PDFs, and Google Slides for Google Classroom. The service can import PowerPoint, PDF, SMART Notebook, Dropbox, and Box files. Its Chrome extension supports webpage annotation, highlighting, and screen-image capture while screen sharing. The Mirror Client offers screen sharing or remote desktop control, with AirPlay and Google Cast listed. Free accounts vary by type: the educational instructor account includes 500MB storage and screen sharing for two hours per day. Paid annual plans include Student Pro at $12.79 a year, Educational Instructor Pro at $15.99 a year, and non-educational Instructor Pro at $27.99 a year. The product is available on Android, iOS, Linux, macOS, Windows, web, and as an extension. The maker says data is encrypted at rest and secured in transit with TLS 1.2.

OpenBoard has no write-up on Specifiction yet; its figures are above.