This app was mentioned in 3 comments, with an average of 1.33 upvotes
The Kodi recommendations basically work by the normal Kodi APK starting both Kodi and a secondary helper app. The helper app acts as a bridge by interfacing with Kodi's web interface to load library data, and Android's recommendation API's. Before this was built-in to Kodi someone made a separate helper app that just ran in the background. I forget the name, but it might be possible to just start that up so that something is shown for Kodi. Of course, the recommendations wouldn't be updated until Kodi is opened again, but previously cached data should be stored (in theory).
EDIT: here it is: https://play.google.com/store/apps/details?id=net.albakhit.genie