Objective To systematically integrate breast cancer patients′ experiences and feelings related to using and interacting within mobile health (mHealth) applications, and to provide evidence for improving user-centric mHealth apps.Methods Using a systematic search strategy, 7 databases (Web of Science, PubMed, Cochrane Library, Embase, CNKI, Wanfang Database and VIP) were searched from database inception to March 2024.Qualitative and/or mixed method studies reporting breast cancer patients′ experience of using mHealth apps were retrieved and screened.Assessment of methodological limitations was conducted using JBI critical appraisal checklist for qualitative research, and the results were integrated using meta-aggregation.Results Twelve eligible studies were included in the synthesis.Seventy findings were identified from the studies and 11 subthemes were generated.Finally, three themes were developed: benefits of mHealth apps; factors influencing their use; expectations of mHealth apps.Conclusion Most breast cancer patients have positive experiences of using mHealth apps, but they also have diversified demands in terms of functional design, information support, social support, etc.Medical personnel and manufacturers should focus on patients′ experiences of using mHealth apps, and improve the relevant supporting system, in an effort to help patients achieve self-management.