Over 3 million hospitalizations and 17 million ER visits occur in Canada each year. A substantial proportion of these encounters are preventable and attributable to medication non-adherence. Non-adherence to medication changes made at discharge increases the risk of adverse events post-discharge. A mobile application was developed to empower patients to better manage their medications post-discharge. A pilot randomized controlled trial will be conducted to assess the application’s usability and efficacy in decreasing non-adherence to medication changes made at discharge.