- Test using Companion or the emulator. Here is some advice:
- Setup computer and phone/tablet or emulator for live testing as you build
- Preview the IDE
- Watch a beginner video tutorial to get started
- There are tools to help you graph data and create charts FAQ Section: Charts and Graphs
You do not need a special tool to test the functionality of your app. You can generate your own data or get data from the Web using WebView or Get Communicating with the Web.
What kind of app will you build? If you explain, someone in the community can provide specific advice.