I can not imagine the challenges a bipolar person maybe going through so having an app specifically for them will be a great help. However, I wonder how this eMoods collect data.
I checked the website and it looks like the data will have to be inputted by the patient. If that is indeed the case then there is a big risk that it will not be accurate because the patient can be biased for him or herself. If that happens, the collected data will be inaccurate and the doctor may come up with wrong diagnosis.