I'm working on an open source swift app that sends anything you circle in a pdf or epub to AI for an explanation. Currently it works with Gemini but I'm going to allow users to add their own OpenAI compatible endpoint soon.

I think it works best on Mac and iPad. Available on TestFlight and GitHub.

https://github.com/syousif94/EasyReader https://testflight.apple.com/join/1KvY5cwC