Regulation and accreditation of addictive behaviour applications-navigating the landscape.

International regulation of applications as medical devices varies across countries and would benefit from standardization in a simple, usable and transparent format. Efforts to provide accreditation of non-medical device applications are also variable, and public bodies provide mixed messages concerning endorsement. Health-care professionals and users are encouraged to use accredited applications for addictive behaviours where they exist, or explore other forms of digital intervention with a stronger evidence base.