This is a bare bones countdown timer. It was created because there is no free, ad-free, simple countdown timer.
This app is universal, so you can use it on a podium with your iPhone when giving a speech, but it will also work on iPad so it can be used in the back of a church and the pastor can see what it says from the front.
The app works in Portrait and Landscape mode so any orientation will be fine. The last set time will be saved, so if the app is used every week, it will always remember the length that you want to have set to... so I guess it is not completely bare bones ;-)