Mine breaks to the point that NONE of the tables work I have have to completely re install it. Really stinks.
Have you tried closing it by going to the home screen and THEN double clicking the home button? If you do that you'll see the icon in the bottom "tray". Press and hold until it "squiggles". Then it will get an x in the corner which you push.
That will force quit the app completely. Then re-open the app from the home page and report back here. There's NO reason you should have to reinstall every time.
(This may be elementary to most, but I've found 3 IOS users in the last month that did not know the function. And I'm talking long time users.)