The latest release was on Nov 16, 2018 and the tool was downloaded and set up by over 10M users. In-app purchase items and ads can be found in this application. Samsung and LG users install the app quite often.
Download the .apk setup package of Instant Heart Rate 5.36.3036 that is free and have a look at users' reviews on Droid Informer. The file size of this application is 39 MB.
Based on the users’ comments, the big advantages of the app are a good interface and advanced features. Some users point out that the obvious drawbacks of this application are privacy issues, too many ads, annoying notifications and a battery drain.