<em>The advancement of technological innovation is growing rapidly in almost all sectors, including in the public transportation sector such as motorcycle taxis and taxis. The development of online ride-sharing operators has transformed online motorcycle taxis and taxi services. The sharing economy system allows someone to lend or lease assets they own, including in this case lending power and vehicles in the form of online ride-sharing services. The inDriver is a ride sharing application that operates in Indonesia. This study aims to test whether price flexibility, service quality, perceived ease of use and perceived usefulness affect user satisfaction and intention to use the inDriver application system. The inDriver application system acceptance analysis uses the Modified Technology Acceptance Model approach. Data were obtained from 100 inDriver application users in South Jakarta by distributing online questionnaires. The data analysis is conducted using Structural Equation Model – Partial Least Square (SEM-PLS) using SmartPLS3. The results show that price flexibility has a positive and significant effect on the perceived ease of use of in-Driver. Price flexibility has a positive but not significant effect on inDriver user satisfaction. Perceived ease of use has a positive and significant effect on perceived usefulness. Perceived ease of use has a positive and significant effect on inDriver user satisfaction. Perceived usefulness has a positive and significant effect on inDriver user satisfaction. Service quality has a positive and significant effect on perceived usefulness. Service quality has a positive but not significant effect on inDriver user satisfaction. User satisfaction has a positive and significant effect on behavioral intention to use inDriver.</em>