This project proposes the development of a digital diary application that leverages techniques based on Large Language Models (LLMs) to analyze emotions expressed in textual entries. The solution aims to support psychologists in the remote and continuous monitoring of their patients emotional states, providing a more detailed and frequent view of therapeutic progress. Developed as a Proof of Concept (POC), the initial focus is on implementing the back-end and integrating tools based on LLMs. The application offers a safe and confidential space for patients to record their emotions, promoting both self-awareness and professional support. It is not a platform for connecting patients with psychologists, but rather a complementary tool to be used by these professionals to enhance treatment.