Sooo y'all I have a question, did anyone ever buy a novel from ridibooks?? If yes, does bu...

Sooo y'all I have a question, did anyone ever buy a novel from ridibooks?? If yes, does buying it allow us to download it, or we can only access it within the site/app ?? I mean tbh if I'm paying for something I'd rather have it downloaded for life so I hope so

Also another question if anyone here translated a novel that they bought themselves, what tools did y'all use?? Which are the best and most accurate??