The vast majority of iOS m-health apps work only with standard iOS hardware (iPad, iPhone, iPod Touch). Among the apps reviewed in this study, only iHealth BPM works with an external sensor, the iHealth Blood Pressure Dock. AgaMatrix10 claimed that they would release the WaveSense Direct Connect Cable to connect diabetesmeters directly to WaveSense Diabetes Manger, an iPhone app for diabetes management. Although multiple apps are being developed to include compatibility with external sensors, this field is so new
that no widely accepted solutions can be found in literature yet. Because there are a rich set of sensors and measurement devices on the market, if m-health developers can make more m-health apps compatible with these sensors and measurement devices, it will certainly bring greater value to users.