Blood Sugar Diary - Health Tracker is a free and very useful app for people with diabetes who want to manage their condition and keep a check on their blood sugar levels. The app can be used for people who have type 1 diabetes or type 2 diabetes. It can also be used for people who have pre-diabetes. 

It is a very important part of the management of diabetes to maintain a proper balance of sugar in the blood. This is why the app also includes tracking of the glucose levels in the blood. In addition, it also includes the tracking of the blood pressure and weight of the user. This is done to check if there is any change in the condition of the user. In addition, the user can also add tags to the entries.