If you’re struggling to find the time to update your portfolio, try documenting your process while you’re working with a case study. You can usually do this parallel to your design work. Here’s an article with more information: https://www.invisionapp.com/blog/how-to-design-case-studies/
Great question, Dane!
For Freehand, when you share a link, you can choose whether you’d like the recipient to be able to edit or view only.
You can invite an unlimited amount of folks, and they don’t need an InVision account to access your Freehand.