This study aims to examine the effect of Viral Marketing, Brand Ambassador, and Perceived Ease of Use on Generation Z’ decision to use the Allo Bank application. This research employs a quantitative research design and uses a purposive sampling technique. The population in this study is unknown. A total of 105 respondents were selected as the sample using a non-probability sampling method and the Lemeshow formula. Data were collected by distributing questionnaires. The research instrument was a questionnaire measured using a Likert scale. The data were analyzed using SPSS version 26 and Microsoft Excel. The results indicate that, partially, Viral Marketing has a significant effect on the decision to use the application, Brand Ambassador has a significant effect on the decision to use the application, and Perceived Ease of Use has a significant effect on the decision to use the application.
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