There is no specific size limit for Progressive Web Apps (PWAs) imposed by the underlying web technologies or standards. Unlike native mobile apps, which often have size restrictions imposed by app stores, PWAs do not have a predefined size limit. As a general guideline, aiming for a PWA size below 10MB is considered a good practice. However, the actual size will depend on the specific requirements, functionality, and resources used in the PWA development process. It's important to balance the app's features and performance with the user's data limitations and device capabilities.