[mtranzambetti]

Wren co-founder here — we ask for your email so we can send you a report on your footprint (if you choose) or come back to the onboarding flow later. We're spinning the calculator out into an open resource soon though!

Finally, we just started two months ago and have not sold user information to ad companies nor do we ever plan to. That sounds like an evil and unnecessary way to go about not accomplishing our mission.