Planning to buy Oximeter? This mobile app can monitor pulse rate, oxygen level in blood One needs to use the mobile app and place a finger on the phone's rear camera and flashlight to get the results within seconds. , File Photo Updated: May 23, 2021, 03:40 PM IST India is currently battling the second wave of the COVID-19 pandemic which has been wreaking havoc in the country since 2020. Amid the battle against the virus, oximeters have become an essential household item and with their demand increase, prices of pulse oximeters have also been hiked by manufacturers. Now, in order to replace an oximeter, a Kolkata-based health startup has developed an app for mobile. The app called CarePlix Vital's is important as it can help monitor your blood oxygen level, pulse, and respiration rates.