Oncological rehabilitation seeks maximum functionality and quality of life for cancer patients. Given the high incidence of breast cancer, it has become necessary to look for ways to provide timely and accessible rehabilitation, especially to those patients who live in areas far from health centers. This has led to the emergence of telerehabilitation or virtual rehabilitation. Our project sought to develop a telerehabilitation platform that could be used both by breast cancer patients and the treating medical team. This work reports on the design, development, and evaluation of a telerehabilitation platform prototype, which has two main components: a mobile app for patients and a web app for physicians. This platform prototype was designed following a user-centered approach, developed using an agile methodology, and evaluated by four domain experts. Details of our solution architecture are provided. Results from our evaluation suggest that the platform offers an overall good user experience and has the basic functionality to support telerehabilitation. We also found opportunities for improvement based on the feedback given by the domain experts. As future work, we plan on improving and extending our prototype, so that it can be used in a clinical study.