This app supports national parks because it is an alert for when for example if there in an avalanche or an earthquake. This app is called Shake Alert. This app is mainly supposed to be used for natural disasters and other events that makes the device shake. For example, when you go out boating and you have the app on the device, the waves will make the device shake. If the shake counter gets to 100, the app will automatically upload the data to isense. You could also upload it manually. The app has a shake counter and a location sensor. There is also a screen that has the map from isense that shows you all the data that has been collected so far. There is also a page for directions if you ever need help. You need to enter your name in the text box before you do anything or we won't know who the data came from. Then, you just let the app do it's thing and then upload the data to isense. I hope you enjoy our app and please share with your friends.