I use the built-in ‘look up’ and ‘translate’ pop-ups in iOS every day. Related to this, before I completely dumped Amazon, I used to have some English<->German

I use the built-in ‘look up’ and ‘translate’ pop-ups in iOS every day. Related to this, before I completely dumped Amazon, I used to have some English<->German dictionaries installed in kindle which let me look up German words while reading German-language books (American living in German-speaking part of Europe for awhile now). That integration along with whisper sync were very useful for learning a language.