The current evidence base for smartphone apps to help people with psychosis stop smoking is limited. This is in part due to the often low quality of smartphone apps for smoking cessation which do not follow guidelines or national recommendations. Many of these apps are also complex to use and not easy to navigate. This is not to say apps cannot help patients with smoking cessation, but that you should use them as an adjunctive tool. App research is frequently updating and changing, so it is possible better tools will soon emerge.
To learn more about picking useful and safe apps, please see this free SMI Adviser learning module: App Evaluation Framework – Hands on With Digital Mental Health (June 2019). Beyond apps, there is also evidence that text messaging program can help with smoking cessation and you can try one here.