Dont be misled by the negative reviewer: This app comes from one of the most respected cancer treatment & research facilities in the world with an active Integrative Medicine Service. It is NOT written by a pharmaceutical company as a previous reviewer misleadingly stated. ALL of the information is scientifically evidence-based. It is an excellent resource for those with cancer seeking complementary therapies to minimize the side effects of chemotherapy or manage pain. And its written for the consumer as well as professionals. And its free!