Introduction:
The shortage of transplantable organs remains a major public health challenge due to limited societal awareness and knowledge. In line with World Health Organization recommendations on evidence-based digital health education, the ‘e-przeszczep’ mobile application was developed as an informational tool focused on transplantology. This study assesses self-reported awareness and knowledge of organ donation among users, highlighting the role of digital tools in supporting informed attitudes.

Aim:
The study assesses self-reported awareness and knowledge of transplantology among users of the ‘e-przeszczep’ mobile application. It analyzes participants’ demographics, prior exposure to transplantology apps, and experiences with paper-based declarations of will. The study also evaluates perceived increases in awareness and knowledge after using the application.

Material and methods:
An anonymous online survey assessed self-reported awareness and knowledge of organ transplantation among ‘e-przeszczep’ users and their socio-demographic profile. An original closed-ended questionnaire integrated with the application collected 262 responses between May and November 2025, excluding sensitive or identifiable data.

Results and discussion:
The survey shows that ‘e-przeszczep’ mainly reaches adults aged 30–59, women, and users with higher education across all regions of Poland. For most respondents, it was their first transplantology app and increased awareness. Many had no prior paper-based declaration of will.

Conclusions:
Users of ‘e-przeszczep’ are mainly adults aged 30–59 with secondary or higher education, including rural residents. For 95%, it was their first transplantology app, and 77% reported increased knowledge. The results highlight the application’s potential as an effective organ donation education tool.