(Information and examples taken from the DroidScript documentation)

The LoadBoolean method loads and returns a boolean (true of false) value from the user's storage space under valueName. If there is no stored valueName, then method returns default value. Use this method when saving and loading user preferences.

The third parameter id is an optional text parameter and allows sharing of data across multiple Apps when the same id is used by both apps.

The third parameter is only useful for sharing data between apps run in the DroidScript IDE. It cannot be used to share data between standalone apps created with the apk-builder.

 num = app.LoadBoolean( valueName, default, id );

See also SaveBoolean

function OnStart()
{
  b = app.LoadBoolean( "MyBool", true );
  app.ShowPopup( b );
 
  app.SaveBoolean( "MyBool", !b );
}