Folkets Ordkompis is an offline dictionary based on the Folkets lexicon. I wrote this app so that the entire lexicon would be available off-line and ad-free, and in a modern looking UI. It's open-source too, and you are welcome to contribute!
Some things to note:
* The dictionary is managed by the public, so some errors are bound to be present. You can go and correct them in the web version if you see one, and eventually they'll appear here too.
* The Swedish to English dictionary has more content