Check out https://www.getflowlingo.com https://www.getflowlingo.com - you can upload any epub and get translations when necessary to help you practice with a bo

Check out https://www.getflowlingo.com https://www.getflowlingo.com - you can upload any epub and get translations when necessary to help you practice with a book. Disclosure: I'm one of the app developers. Let me know what you think :)