The primary objective of the clinical trial is to evaluate the data of an app for smartphones (BiP-App) with regard to sleep, movement, mood and communication behavior.

The data will be compared between two groups: people with a bipolar affective disorder and individuals without a psychiatric disorder.

Secondary objective of the trial is to investigate if it is possible to detect early warning symptoms of depressive / (hypo) manic episodes via the measured behavior patterns.

Furthermore it will be evaluated whether the BiP-app can find applicability in the examined patient group.

Study design: Clinical evaluation of a medical device without CE mark; Parallel study design

Inclusion Criteria:

• Written consent of the participant after clarification
• Patients with a bipolar affective disorder (group of patients) Or control persons without a mental illness (control group)
• Age between 18 and 70 years
• Knowledge about using a smartphone

Exclusion Criteria:

• Rejection of participation
• Lack of knowledge about how to deal with a smartphone
• Congenital / early-childhood intelligence reduction
• Moderate / severe dementia