Unfortunately my review of Calm is based on the very annoying voice of Tamara. I thought it was just me but on researching other opinions on the internet it would seem that many others come to the same conclusion. I joined Calm principally for the sleep meditations. After a few weeks I realised that anything read by Tamara was achieving the opposite effect desired. Her pitch and cadence are both artificial and pretentious. I know this sounds on the face of it almost prejudicial but I can assure you that this is not a voice that will leave you calm.