I would think it depends on the intended use of the application. For example,
- If you are providing access to electronic copies of data, you are not a medical device. (i.e. Lab Information Systems)
- If you are using the information for general fitness, health and wellness, you are not a medical device. (i.e. step tracker)
- If you are gathering data on a tablet so Health Care Providers can easily monitor vital signs, you are a medical device.
Reference:
Examples of Software Functions That Are NOT Medical Devices