You don’t even need a third-party app to make clones of your installed apps.
This way, you can create a second copy of your favorite app, add your secondary account to it, and use that app as if it’s the original app you have on your phone. Do you have multiple accounts for an app but your Android phone will only let you use one? No worries, there’s a feature on some Android phones that lets you run multiple copies of an app.