Like share application option in DAB, there should be “Rate this app on play store”.
Rating is directly proportional to recommendations. so as rating goes up, app recommendations will also go high to the new users.
Second features is “share this entry” feature.
Due to this anyone can share any specific entry with full lexeme and gloss to anyone else via text message, mail or social media apps.
Hope my suggestion will take some space for consideration.
Thanking you in anticipation.