As health-related mobile apps have proliferated in recent years in USA and Australia, counsellor opinions were solicited to aid development of therapeutic apps. After being informed of the therapeutic potential of time and location-based reminders, 33 drug and alcohol counsellors from New Zealand and Australia answered an anonymous online survey. Counsellors were willing to use timed and location based reminders to assist clients with their sobriety, but were concerned about running costs. Less experienced counsellors may be less willing to use mobile technology therapeutically. Counsellors could be willing to use location services on mobile phones therapeutically, but training may be required to address concerns about privacy and the ability to engage with clients about their spatial and temporal vulnerabilities.