Essential UI Widgets for Flutter is a set of ever-growing UI widgets package for developing rich cross-platform mobile applications using Flutter framework. Now it includes beautifully crafted charts such as line chart, area chart, step line chart, spline chart, bar chart, scatter chart, bubble chart, pie chart, doughnut chart, and radial bar chart.
For more information about using these widgets: https://pub.dev/flutter/packages?q=syncfusion