Since this is an APK file downloaded outside the Play Store:

If you have already purchased the Prime License, simply installing the updated APK will automatically recognize your premium status, unlocking all features instantly. How to Install

Features and user experience

The search term refers to (the paid version) with a specific version number 7.0.58 . As of my latest knowledge, version 7.0.58 does not exist in official release history. The most recent stable version of Nova Launcher v7 is 7.0.57 , followed by 8.0.x (the newer major version). Any APK claiming to be 7.0.58 is likely unofficial, modified, or mislabeled .