Health Diary by MedM

You can create custom trackers for almost anything, like headache intensity, hours slept, stress levels, caffeine intake, or any personal habit. The app lets you log notes alongside each entry, so you can record context like exam days or late study sessions.

The app displays your tracked data as simple line graphs and a calendar view, making it easy to spot patterns. For example, you can see a low sleep bar on one day and a high headache spike the next, visually linking cause and effect without any manual analysis.

Health Diary currently doesn't integrate with other health platforms like Google Fit, so you have to manually type in data such as step counts. This is a common frustration, as the app feels isolated and lacks the automatic syncing that some users expect from a health tracker.

If you find the plain white interface and basic graphs too minimal, try customizing your trackers with different colors or units to make the data more visually distinct. You can also use the calendar view to tap on specific dates and review all your logs at once, which adds some structure to the simple layout.

Health Diary focuses on numerical data and line graphs for spotting correlations, while Daylio uses mood-based icons and colorful entries for a more engaging experience. Health Diary is better for scientific tracking and seeing raw connections, but Daylio offers more visual flair and a friendlier interface for casual mood logging.