pick heart rate or respirations, pick a 15-, 30-, or 60-second count, then tap the watch once for each beat or breath. when the timer expires it works out the rate per minute. the whole screen is the tap target, so it works one-handed without looking.
vitals tap does not use the watch's optical heart-rate sensor. counts and settings stay on the watch. there is no account, no server, no analytics, and no advertising. the only permission it asks for is vibration.
vitals tap is in internal testing on google play and is not publicly listed yet. questions: hello@kalcodia.com
vitals tap is a manual counting aid, not a medical diagnostic device. results should not replace professional medical judgment or approved monitoring equipment.