ChartDay app for iPhone and iPad

Turn your daily habits, routines, and stats into beautiful, interactive charts.
Track anything visually, intuitively, and effortlessly.

◉ Key Features
・Daily Tracking Made Simple
　Enter your data by day, and view insights by week or month at a glance.

・Set Goals & Stay Motivated
　Add target lines or ranges to visualize your objectives directly on the chart.

・Instant Stats
　Get automatic calculations: sum, count, min, max, mean, and median.

・Widgets for Quick Access
　Add widgets to your Home Screen to monitor your progress without opening the app.
　(Tap the widget to open your chart and enter data instantly.)

・iCloud Sync
　Keep your charts safe and in sync across your devices.

・Data Export
　Export your chart data as a CSV file anytime.

・Private & Ad-Free
　No ads, no tracking, and no data collection.

◉ ChartDay Unlimited (In-App Purchase)
Unlock unlimited chart creation with a one-time upgrade.
Try it for free—add up to 100 data points before deciding.