5/5 rating based on 515 reviews. Read all reviews for Cardiio: Heart Rate Monitor for iPhone.
Cardiio: Heart Rate Monitor is free iOS app published by Cardiio, Inc.
swimmerjoy
The light and the camera used (bottom right) are hard to touch simultaneously, (especially for small fingers). The heart rate signal comes out as very uneven ,difficult to measure. It used to be such a nice app and now it is close to useless. Cardio needs an update using the top left camera.
aratreya
Complete waste of money! The stupid app kept saying poor connection. I remained completely still even holding my breath so it would record my heart rate and still kept giving me the same garbage. So of course the genius I am, I bought the pro, hoping it would give a different result. I got it to record twice out of probably 50 tries and only after paying to upgrade.
gmarczewski
Gives readings that are very close to oximeter. You do have to keep from moving and place your finger where instructed and avoid pressing hard. Amazing and free
Pat-Little Rock
Review: ? %. I like it, it’s easy and at my fingertips!! Thank you ?? I don’t have to fool with login in’s etc……❤️❤️❤️❤️
muelsterhouse
I am on the iPhone 12 Pro. No combination of light and camera seems to work. Does this app work with this version?
GlendaNP
Tried to out in my data and the ‘male’ couldn’t be changed to ‘female’. Data is useless unless the parameters are accurate.
Noxlet
The software isn’t easy to use with the iPhone pro. The camera and light sources are difficult to use unlike earlier iPhones. It can be Donne but the graphic is not helpful as the light source and camera are diagonal. Nice app that suffers from neglect.