Qardio makes an awesome blood pressure monitor. However the software to control it is absolutely horrible! :( It provides absolute minimum functionality, cant track multiple measurements throughout a day, full of bugs and "forgets" all settings every day, so you have to log in virtually daily.
The Apple Watch app simply doesnt work: it just shows "Qardio" logo and thats it. It never progresses anywhere.
Which is a pity, since the hardware itself is very good. :(
dniq about Qardio heart health