Are you looking for a blood pressure tracking app that supports Health Connect on Android?
Blood Pressure Log: Scan & Go (formerly Instart Blood Pressure Tracker) app fully supports Health Connect.
With the Blood Pressure Log: Scan & Go app, you can view your recorded blood pressure data in other Health Connect–compatible health apps such as Google Fit and Fitbit.
Conversely, data recorded in Google Fit and other Health Connect–compatible apps, such as step count and calories burned, can also be displayed as custom records within the Blood Pressure Log: Scan & Go app.
