DTTG and family sharing of the iOS app

I purchased DTTG for my iPhone. Have family sharing enabled for my iPhone and another family member. However that member cannot download the app without paying full price. Am I doing something wrong or will DTTG not allow me to share the app with a family member? Thanks!

DEVONthink To Go supports family sharing for the app but (like any iOS app as per Apple’s rules) not for the in-app purchase. Is family sharing set up correctly for your family members and can they download other apps? Sometimes this App Store feature needs you to actually attempt the purchase and then pops up a dialog saying “Hey, this is free for you.”