Simple and fast charts.
SimpleAndroidBarChart is an Open Source Android library, that allows you to display a proposal of barchart.
A Java-based easy to use and highly adjustable custom view that displays the progress of a single given task.
Simplegraph is Android custom view that can generate graphs similar to the ones you see on coin trading/exchange sites.
Elementary and clean Android View for displaying piano chord and scale charts in music theory apps for pianists.
A work-in-progress chart library for Flutter. Until version 1.0.0 the API is subject to change drastically. Needless to say, fcharts is not production ready.
A simple chart for Android with three indicators and one more to indicate overall summary. They get highlighted if you click on the ring or text.