App for lectures, speeches and such?

Are there apps which can be used for speeches and similar that shows the text you want to speak? So one reads the text from the app for a speech and such.

Normal apps seems to be not that practical for such: the text has no line breaks at the margins (so you had to scroll to the left / right) they do not show the paragraphes, the (size of) font cannot be changed or the size of the text and many more.

 

That is a good idea, thank you. Controlled by the speaking speed. Sounds really good.

Usual apps / each app I know, I tested / apps that show the content of text files, every other app besides of teleprompter apps.

Many thanks again.