Hey bill, Thanks for your feedback. We know Zest behavior is a bit weird when you pick a tab. In order to build a consistent product across all browser we didn't do any modification (yet). Ideally we should check if "one tab" has been selected and start recording automatically.

For now i recommend you to pick "full screen"

Hey, we are currently working on mobile SDK to bring Zest to iOS and Android

At Stories, feedback is our raw material to build a great product. Our PMs were struggling to set up a feedback generation process so they built a widget to help our users record voice + screen feedback.

We recently spin it off as a side project: http://hellozest.io/. It's free to install and works like a charm.

Hope it can help you get more contextual feedback and build better product