The 21 - Day Meditation Experience is a mobile application bearing the same name as the website, where more than 1.5 million users (~6500 concurrent users) are present during active periods. The site announces 21 day meditation challenges 3-4 times a year. The requirements of the application were the following: access to the content of the free-period, the streaming of prior purchased products with a synchronization option, personal diary, the portraying of the visual elements of the challenges and a user-friendly interface.