This site doubles as a privacy policy and an overview of the app. First of, the privacy policy part:

Do we collect, store or transmit user data?

No. Unlike Google, who forced me to write this policy, we don’t collect, transmit, or process your data beyond what is necessary for the app to function. Here’s what that means in detail:

• Local Storage: We store your settings and scripts on your device only. We don’t see them, we don’t send them, and we don’t want to.

• Files: The app allows you to open files, but that’s it. We don’t keep them, we don’t upload them, and we definitely don’t care what you do with them.

• Third-Party Packages: Some dependencies in this app (like shared_preferences and path_provider) enable local storage, and others (like url_launcher) may open external links. We don’t control what Google or other third parties do, so if they spy on you, blame them, not us.

TL;DR: Your data stays on your device. We neither want nor need it. If Google, Apple, or your backup settings decide to do something with it, that’s on them.

About

This is a simple teleprompter app. The focus is on usability, but despite a minimalist focus, it is quite feature rich and always gets extended.

Features include setting fonts, saving and loading scripts, countown and many more.

And unlike other available teleprompters, this one is and always will be free - in all senses. Free as in beer, free as in speech and free as in no ads. Ever. That's a promise.

You can download it from github or via f-droid: https://f-droid.org/packages/io.github.tiefseetauchner.tiefprompt