Have you figured out how to make a phone call with that so-called phone?
Okay. Apps. Also called applications. They're all specialized. You need a calculator app 'cause you probably can't recall your division tables. Capish? It's already on your 'droid.
I'd also suggest the Tapatalk app. It's free and once you have downloaded you can log onto a forum called Teardrops and Tiny Travel Trailers. You'll learn all sorts of neat ways to build trailers and chat with a great crowd.
My favorite app is probably WeatherBug. Another freebie. You can check the weather forecast wherever you're at. If the forecast says 80% chance of rain, you can click the hourly forecast and find out that the rain isn't supposed to start until 3pm (or whenever). I find that feature real handy some days. You can also click on the radar and know if that big cumulas cloud is going to roll over your campsite.
I really like the Google Earth app with my phones GPS feature. It's free. Zoom in and see if your teardrop is visible at your house. Anywho..... lots of apps. Probably a dutch oven cooking app....
T