NClass is not available for Android but there are a few alternatives with similar functionality. The best Android alternative is PlantUML, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to NClass and three of them are available for Android so hopefully you can find a suitable replacement. Other interesting Android alternatives to NClass are ClickCharts and System Designer.
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others.
Design flowcharts, UML, Venn, and mind map diagrams with customizable templates, varied symbols, shapes, connector styles, overlapping sheet support, and intuitive drag-and-drop editing. Export visuals as images, edit multiple diagrams, and organize complex data visibly.
Integrated development environment that can help you define models for your applications in a streamlined manner and test the results.
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