ASX-listed medication adherence app vendor MedAdvisor is moving its executive functions to the US, with former Surescripts CEO Rick Ratliff taking over as CEO and managing director from Australian-based Rob Read.

The company began as a start-up in 2014 under founder Josh Swinnerton and has since become the dominant market player in medications apps in Australia, with almost 60 per cent of pharmacies able to accept orders and send alerts through the app.