You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
This post has stopped my looking for an adapter from a third party. But, Tesla better get their act together and supply the 14-30 adapters pretty darn quick, or my joy will be a bit diminished when my Tesla arrives next month.