Add destination button missing?

This morning (29/09/14) upon going to use ROUTEXL i entered my first destination but noticed the button next to where you enter the address and add it is missing meaning i was unable to use it, I’ve deleted and re downloaded the app on a Iphone 5S,I was wondering whether this was intention as ive used it once a day for the past couple of weeks or whether its a bug as it was working fine on 18/09/14

The text input field was considered too small by some. We increased the size in the update last week, which made the larger add button fall off the screen. In the next update we will add a smaller button.

You should be able to input destination although the button is not visible. After you have input the address, push the enter or go button on your phone keyboard.