Blood Sugar Diary App is a free Android application designed to help people with diabetes manage their blood sugar levels effectively. Developed by F. Zander, this lifestyle app provides a comprehensive solution for tracking insulin, glucose levels, and insulin units at different times of the day. The app also features a blood glucose converter, allowing users to store their glucose data in either mmol/l or mg/dl.

One of the key features of the app is the insulin diary, which allows users to record their blood sugar levels and write comments. The app also displays a statistic of blood glucose data, even after the event, such as in the morning or in the evening. Users can save a backup of the database and export their insulin data as a CSV or Excel file. Additionally, the app supports dark mode, which can be activated manually or automatically from the energy-saving settings. With further features and improvements to be added, the Blood Sugar Diary App is a reliable tool for anyone looking to manage their diabetes effectively.