Appen HAP, developed by Uteseksjonen in Oslo, KORUS Oslo, and RUSinfo with funding from Helsedirektoratet, is a dedicated tool for individuals looking to quit, reduce, or take a break from cannabis use. Designed as part of the Hasjavvenningsprogrammet, this app offers daily motivational insights, a trigger diary to track and understand urges, and an abstinence graph to monitor progress during cessation.

Users can engage with two main modules: one focusing on comprehensive resources for those wishing to quit or cut back, and the other providing informative content for occasional users. HAP offers practical advice on managing withdrawal symptoms, tips for maintaining sobriety, and a performance tracker celebrating achievements along the way. Additionally, it features a price calculator to highlight savings from quitting and allows for anonymous queries to RUSinfo for further support. HAP is committed to providing neutral, non-moralizing guidance and encourages user feedback for continual improvement.