Retailer mobile applications are one of the principal retail purchase and information search channels. Customer experience is key to retail app success. However, its dimensions and impact on retailer performance have been the subject of only a limited number of studies. This research builds on existing customer retail app experience literature by considering four dimensions as precursors of satisfaction with the retailers’ app and customer loyalty (cognitive, affective, relational and sensorial). Data were collected from a sample of 545 retailer app users and analysed using PLS-SEM. The results demonstrate that the affective dimension has the most influence and they highlight the importance of the sensory experience, which even surpasses the cognitive experience. The effect of the relational dimension on customer satisfaction, meanwhile, could not be positively confirmed. Analysis of the moderating effect of gender, age and device type used identifies effects that have not, until now, been demonstrated in current literature., This research was supported by the Andalusian Plan for Research, Development and Innovation of the Andalusian Government (Grant: Research Group SEJ-567), and the Spanish Ministry of Science, Innovation and Universities (Grant: PID2019-105468RB-I00)