The present study aimed at examining how (and if) several factors could improve the WOM intentions of a mobile app after the users formed their first impression of the app. Facets of simplicity and the PAD model were used as the starting point for understanding WOM intentions after a user’s first impression of a mobile app. The findings showed that simplicity was positive and significantly associated with ease of use (hypothesis H1) and satisfaction (Hypothesis H2), thus supporting the findings of previous studies (Choi and Lee, 2012, Cyr et al., 2008, Lee et al., 2015). Also, it was observed that simplicity has a significant positive influence on WOM intentions (hypothesis H3). This suggests that when a mobile app is properly designed from a simplicity perspective (i.e. taking into account the different facets of simplicity), users are likely to find it easier to use and also experience high levels of satisfaction from using it. Additionally, users do not stop at simply being satisfied with products that are designed for simplicity, but they are likely to express their satisfaction with the design through positive WOM.