Inclusion Criteria:  Idiopathic Parkinson's disease (H&Y I-IV) Age > 18 years Ability to walk > 4 x 10 m without assistance Ability to speak and read Ability to use an application that can be mapped on a smart device Informed consent of the study participant Willingness of the study participant to take therapy measures (e.g., medication therapy, exercise therapy)  Exclusion Criteria:  Tremor-dominant Parkinson's syndrome without involvement of the lower extremities Aphasia and alexia Visual disturbances that make reading impossible Higher-grade movement disorders, with high risk of falls and non-independent ability to walk Higher grade cognitive deficits Inability of the study participant to understand the information and procedures of the study