ArchFlow is an application that was created to quickly and quickly create flowcharts and E / R diagrams during distance learning lessons, but it also has handwriting and text processing functions that allow you to use the application also as a digital whiteboard in general.
ArchFlow is not a word processor, it is not a graphics and image processing program and it is not even a program for creating presentations.
Personally I use the application for distance learning, as a specialized digital whiteboard for teaching computer science, although it can be used for general purposes.
The free version of ArchFlow does not allow you to save changes to documents unless you first proceed with the purchases in the application.