Impossible to cancel prior to the free period ending. Edit: I was able to cancel. What tripped me up initially was attempting to cancel through the web interface (not app) while using my android device. This was a impossible. Once I accessed the account on my laptop, I was able to cancel. I left because I already drink water first thing in the morning, and the suggestion seemed silly given the level of selfcare I already do. I would be open to something more tailored to my existing habits.