iPhone 6s stuck on white logo screen

An app wasn't working on my phone so I tried to restart my phone. But when I turned it back on, it is stuck on the white logo screen. When I plug it into the wall it says to connect to iTunes which I can't because I dont have a computer. I've tried the whole pushing on the home button and the on button thing a few times but nothing. It's been like this for a few hours. And the screen turns off randomly and turns back on but still stuck on that white screen. Any suggestions? It's only a little over a year old and it was working perfectly before I tried to restart it.