I am a part of a team of 2 UX designers and we are trying to use Sketch for rapid prototyping and unmoderated user testing. We are looking to build out a prototype using agile processes enabling us to create an iteration of the prototype, send it out, and get user feedback within 1-2 days. The problem we are running into is that when using Sketch cloud we are not able to get user comments unless they have a Sketch subscription. Is anyone aware of any rapid prototype-collaboration-user feedback tools (plugins) or online services to get user feedback? We want to make this cheap, fast and easy so it is easy to include user feedback during sprints.
There's a bunch of them out there.
Marvel, Invision, or, if you want more complex interactions, Framer.
Another option would be to use Figma instead of Sketch, or to import your Sketch file into Figma.