The study will include stable bipolar patients (YMRS ≤ 8, HDRS ≤ 6 for at least one month prior to study entry) who have experienced at least one hypomanic, manic or depressive relapse during the 12 months prior to study entry. This will be carried out in three different but complementary phases in order to fully include patients and therapist's preferences. Along the process, confidential information and data handling will be tested to ensure privacy and confidentiality are warranted. In this regard, an anonymized user name and password will be given to the patients who will never have to reveal their real identity to access the application during the study.